Full opinion text
Opinion for the Court filed PER CURIAM. PER CURIAM: Eleven defendants appeal judgments of conviction on charges relating to the operation of a large-scale cocaine distribution conspiracy allegedly run by appellant Rayfnl Edmond, III from 1985 until Edmond’s arrest in April 1989. A 43-count superseding indictment filed on June 20, 1989, charged appellants, along with 18 others, with a variety of drug-related charges, including conspiracy to distribute and to possess with intent to distribute more than five kilograms of cocaine and more than 50 grams of cocaine base, in violation of 21 U.S.C. §§ 841(a) and 846 (1988). In addition, the indictment charged Edmond with leading a continuing criminal enterprise (“CCE”) involving at least 150 kilograms of cocaine and at least 1.5 kilograms of cocaine base, in violation of 21 U.S.C. §§ 848(b) and 853. The indictment also charged appellants Edmond, James Antonio Jones, and Jerry Millington with offenses involving firearms and violence, including homicide. Finally, the indictment sought forfeiture of certain assets owned by the co-conspirators, including four residences, a Chevrolet Corvette, a Jaguar XJS convertible, and a Mercedes-Benz 190E, pursuant to 21 U.S.C. § 853(a)(1) and (a)(2). On August 9, 1989, the District Court severed the counts of the indictment alleging crimes of violence and firearms offenses from the conspiracy and drug-related charges. As to the latter charges, the court split the defendants into two groups for trial. This appeal arises from the first drug conspiracy trial. I. BACKGROUND A. The Government’s Evidence At trial, the Government presented evidence that Edmond led a group of family members and friends who conspired to distribute large amounts of cocaine in the northeast Washington neighborhood where many of them lived and where Edmond grew up. Those involved in the conspiracy were Edmond; his friends, Melvin Butler and Tony Lewis; Edmond’s half-brother, Emanuel Sutton (“Mangie”); his half-sister, Bernice Hillman MeCraw (“Niecy”), and her husband, David MeCraw; Edmond’s cousin John Monford (“Johnny”); Edmond’s aunt Armar-etta Perry; and Edmond’s sister’s boyfriend, Jerry Millington; along with James Antonio Jones (“Tonio”), Keith Cooper (“Cheese”), and others not involved in this appeal. According to the Government’s evidence, the conspiracy involved a multi-layered operation. Its focus was a two-block area of Morton Place and Orleans Place, N.E., known as “the Strip,” which served as an open-air market for cocaine powder and cocaine base, supplied by the Edmond organization from early 1986 through at least 1988. In operating the drug business, sellers, paid by the day or week, worked in eight-hour shifts. Demand for drugs along the Strip was so intense during this period that sellers sometimes sold out their supplies within minutes. Individuals dubbed “lieutenants” of the organization, including Cooper and Sutton, supplied sellers, including at least one juvenile, with bundles of cocaine, collected money from them, and shouted warnings when police entered the area. These lieutenants, along with Millington, Jones, and Mon-ford, supervised the Strip, controlling the supply of cocaine and overseeing sellers. The Government presented evidence that the lieutenants stored drug supplies in abandoned houses at 653 Orleans Place, 656 Orleans Place, and 642 Morton Place in northeast Washington, D.C. Police who executed search warrants at those addresses in early 1988 discovered a total of 300 grams of cocaine and 400 grams of cocaine base, thousands of dollars in cash, and nine firearms. After one search, police saw Jones and Mill-ington watching four other persons clean up an apartment in the 656 Orleans Place house. During a February 18, 1988, search, police observed Cooper, who had been supplying sellers in the 600 block of Orleans Place when police arrived, throw down $1,400 in cash. Police recovered 100 $25 bags of cocaine in a plumbing pipe in the basement of the house as a result of that search. To supply the Strip, several associates of Edmond, including David and Bernice Hill-man MeCraw and Armaretta Perry, packaged cocaine at various sites, including the MeCraw apartment. Once packaged, the cocaine was stored at various homes, including the apartment of Millington and his girlfriend, Edmond’s sister Raehelle Edmond, in Suitland, Maryland; and the apartment of David McCraw’s friend James Minor, who MeCraw had recruited into the organization. The organization also stored drugs at the Edmond family home at 407 M Street, N.E., Edmond’s residence until he graduated from high school and a hub for the conspiracy. Edmond’s aunt, Armaretta Perry, resided in and controlled the house which contained more than 200 grams of cocaine when police searched it on February 5, 1988. Kathy Sellers, a school friend of Edmond and former girlfriend of Jones, who had been heavily involved in the Edmond organization, cooperated with the Government’s investigation. She testified that drugs were hand carried from storage houses to the Strip. At the direction of Millington, Sellers began picking up bags of cocaine in the fall of 1987, sometimes at Millington’s home. Later, she received drugs from David MeCraw. After receiving the drugs, she drove to the Strip and delivered the supply to Millington, Cooper, Monford, Jones, and others. She made such deliveries until the early summer of 1988, receiving $800 per week from Milling-ton as compensation. David MeCraw also delivered drugs after receiving them at James Minor’s apartment building. Minor himself later accompanied MeCraw in bringing cocaine to Sellers’s apartment and, after Sellers stopped making deliveries, directly to the Strip. In making such deliveries, the two parked a few blocks from the Strip, then found a “lieutenant,” such as Jones or Cooper, who would send a runner to the car to pick up the contraband. The Government presented evidence that the Edmond organization also acted as a drug wholesaler. On December 11 and 15, 1987, an undercover officer purchased half-ounces of cocaine near 407 M Street from a juvenile, Harry “Whitey” Sullivan, whom Emanuel Sutton identified as an associate of Edmond. On October 28, 1988, Sutton himself promised to sell the officer a kilogram of cocaine for $22,000. On December 14,. 1988, David MeCraw sold an ounce of cocaine to the same officer. Stevenson McArthur, a drug dealer, testified that he bought three half-kilograms of cocaine from Edmond for $10,000 each in 1987 and 1988. Regarding the proceeds from drug sales, the Government’s evidence indicated that Kathy Sellers picked up money from sales on the Strip, collecting amounts ranging from $400 to $10,000 from Cooper, Monford, and others, and delivering the cash to Millington or holding it at her own apartment. At Millington’s house in Upper Marlboro, Maryland, Sellers saw Edmond’s mother, Constance Perry, count thousands of dollars with a money-counting machine. In April 1989, police found two money-counting machines, along with Cooper’s personal papers, in a residence at 25 19th Street, S.E. When police searched the Edmond home in February 1988, they found more than $27,000 in cash. Further, Edmond’s childhood friend, Royal Brooks, twice picked up money from Milling-ton’s house at Edmond’s request, and once stored between $2 million and $8 million for Edmond. According to the Government, the Edmond organization received the cocaine that fueled its activities from Colombia through a series of transactions with Melvin Butler in California. The Government presented evidence that Edmond associates Royal Brooks, Alta Rae Zanville, Tony Lewis, and Edmond himself, made trips from Washington to Los Angeles in 1988 to arrange for, and pay for, shipments of cocaine to Washington. On a trip taken January 11, 1988, Edmond, Brooks, and others flew from Washington to Los Angeles, where they met Butler. Edmond and Butler obtained approximately 200 kilograms of “cooked” cocaine, then packaged it in kilogram lots. They then delivered the drugs to a mobile home that Edmond said was bound for Washington. On April 7, 1988, Edmond sent Zanville to Los Angeles with $1.5 million in cash. Once in California, she left the money with Butler. On May 4, 1988, Edmond sent Zanville and Brooks separately to California with a total of $1.5 million in cash. Zanville became impatient waiting for Edmond’s call at her Los Angeles hotel, and left her share of the money with Brooks. The next day, Brooks, Butler, and two Californians were arrested in Los Ange-les while attempting to buy 224 kilograms of cocaine from an undercover officer in exchange for the money that Brooks had brought. • Various persons were involved in the shipment of cocaine from Los Angeles to Washington. Beginning in the early spring of 1988, James Mathis helped to deliver cocaine from Butler from Los Angeles to Washington. Mathis flew to Washington about eight times with suitcases full of kilogram-sized bricks of cocaine. Once in Washington, Mathis would page Edmond, and a courier would be sent to pick up the drugs. In addition, Royal Brooks testified that he regularly collected cocaine from Butler and others at various hotels and residences in the Washington area, beginning in the summer of 1987. The Government also offered evidence of the unexplained wealth of the defendants and recorded statements obtained from wiretaps placed by investigators with court authorization on two telephone lines located inside 407 M Street. As an example of unexplained wealth, Edmond owned a number of expensive cars, including a Jaguar convertible with gold-plated hubcaps, spent $21,000 to furnish his house in Maryland, paid $29,000 in cash for various items of jewelry and for jewelry repair, and once, along with Lewis, spent between $20,000 and $25,000 on clothes purchased at a single store. However, according to a close friend, Edmond had held no job since high school. Others in the organization similarly were inexplicably wealthy. For example, Lewis owned a Range Rover, a BMW, a Mercedes, and several Porsches. The Government’s two wiretaps, one of 30 and one of 60 days’ duration, recorded an August 17, 1988, call to Butler in which Edmond promised to send “three or four million,” and Butler referred to Edmond as “my partner.” Joint Appendix (“J.A.”) V 69-70. On August 24, 1988, an unidentified man telephoned Edmond to report that ‘Whitey got the dude around here now,” and to ask whether he should “give it to him.” J.A. V 21. Edmond told the caller to give the man “the half.” Id. Additionally, after agreeing to cooperate with the Government, Zanville consented to the recording of her conversations with other members of the conspiracy. In one of these, Edmond’s mother, Constance Perry, described how Edmond’s operations started with “his daddy,” and described her son’s early days of drug dealing with Mon-ford: [Wjhen he started out, it was just like, you know, like he was doing hand to hand coming, him and Johnny ... on the corner and they was selling and they was getting it from Ray [Edmond’s father].... And then he ... it just got too big, he just up and went out on his own. J.A. VI 47. B. The Defense Evidence In defense, Edmond sought to impeach the credibility of Zanville, the Government’s chief witness. He called Zanville’s former husband, Myron Zanville, and his sister, who testified that Zanville had a bad character for truthfulness and a weak head for figures. In addition, a former friend of Zanville contradicted Zanville’s testimony on cross-examination regarding her possession of several fur coats, and asserted that she did not trust Zanville. In an effort to explain his wealth, Edmond also presented evidence of his obsession with and extraordinary luck at gambling. For example, his friend Clarence Green stated that Edmond won $20,000-$40,-000 each time he gambled. On behalf of Jerry Millington, Georgetown University basketball star Alonzo Mourning testified that, although he visited Millington’s house in Upper Marlboro a number of times in the fall of 1988, he never saw drugs, large amounts of money, money-counting machines, or anything else unusual. Milling-ton's sister said she lived at her brother’s house for five months in 1988 and had no knowledge of drug activity during that time. Like Edmond, Emanuel Sutton sought to paint Zanville in a negative light. He called one of Zanville’s colleagues from her job at the Department of the Navy, who described Zanville’s modest salary, flashy clothing and cars, and, in response to Zanville’s testimony about her drug activities during the working day, the limited leave she was allowed. In addition, a defense investigator described the dilapidated condition of Sutton’s house. James Antonio Jones presented a defense of misidentification. His sister and brother both testified that Jones resembled another man, Leslie “June” Wheeler. In defense against Count 4 of the redacted indictment, which charged him with possessing a kilogram of cocaine recovered from the trunk of a Toyota on February 6,1986, Jones presented evidence that the car trunk also contained numerous documents belonging to other persons, as well as a motorcycle helmet. Jones did not ride a motorcycle. Bernice Hillman McCraw called David MeCraw’s mother, who lived with the couple and claimed that she had paid for their wedding and honeymoon and that all household expenses were split three ways, and denied ever seeing any drugs or drug paraphernalia in the apartment. Keith Cooper’s grandmother testified in his defense that he had moved out of 25 19th Street, S.E., in 1986 or 1987, and that her daughter’s boyfriend, who had died from a drug overdose, had been living in the basement area where the police found the money-counting machines during a search on April 16, 1989. The parties also stipulated that Cooper was incarcerated in October 1987, and March 1988, two months during the period Kathy Sellers claimed to have delivered drugs to him. Like Edmond and Sutton, Melvin Butler sought to undermine the credibility of Zan-ville. He presented evidence of Zanville’s January 5, 1989, statement to an FBI agent to impeach her testimony, largely through omission. Tony Lewis, David McCraw, John Mon-ford, and Armaretta Perry presented no evidence. C. Verdict and Sentencing On November 20, 1989, the trial judge granted Melvin Butler’s motion for judgment of acquittal on Count 12, which charged him with interstate travel in aid of racketeering. On December 6, 1989, the jury convicted the appellants on all but one of the remaining charges in the indictment, acquitting James Antonio Jones of Count 4, which charged possession of cocaine with intent to distribute. The court conducted separate sentencing hearings from September 4 through October 5,1990. The verdicts and sentences for each appellant were as follows: Rayful Edmond, III was found guilty of (1) Engaging in a continuing criminal enterprise, under 21 U.S.C. §§ 848(b), 853 (Count One); (2) Conspiracy to distribute and possess with intent to distribute more than 5 kilograms of cocaine and more than 50 grams of cocaine base, under 21 U.S.C. § 846 (Count Two); (3) Unlawfully employing a person under 18 years of age, under 21 U.S.C. § 845b (Count Five); (4) Interstate travel in aid of racketeering, under 18 U.S.C. § 1952(a) (Count Eleven); (5) Unlawful use of a communications facility, under 21 U.S.C. § 843(b) (Counts Fourteen, Fifteen, Sixteen, and Eighteen). On September 17, 1990, the District Court imposed sentences of mandatory life without parole on Count One, life without parole on Counts Two and Five, 60 months on Count Eleven, and 48 months on Counts Fourteen, Fifteen, Sixteen, and Eighteen. Edmond’s sentences were to run concurrently. Melvin Butler was found guilty of (1) Conspiracy to distribute and possess with intent to distribute more than 5 kilograms of cocaine and more than 50 grams of cocaine base, under 21 U.S.C. § 846 (Count Two); (2) Unlawful use of a communications facility, under 21 U.S.C. § 843(b) (Count Fifteen). On September 4, 1990, the court sentenced Butler to 405 months on Count Two, and 48 months on Count Fifteen. Butler’s sentences were to run concurrently. Emanuel W. Sutton was found guilty of (1) Conspiracy to distribute and possess with intent to distribute more than 5 kilograms of cocaine and more than 50 grams of cocaine base, under 21 U.S.C. § 846 (Count Two); (2) Distribution of cocaine base, 21 U.S.C. § 841(a)(1) and (b)(1)(C), and 18 U.S.C. § 2 (Count Twenty); (3) Unlawfully employing a person under 18 years of age, under 21 U.S.C. § 845b (Count Twenty-One). On September 6, 1990, the court sentenced Sutton to 320 months on Counts Two and Twenty-One, and 240 months on Count Twenty. Sutton’s sentences were to run concurrently. James Antonio Jones was found guilty of conspiracy to distribute and possess with intent to distribute more than 5 kilograms of cocaine and more than 50 grams of cocaine base, under 21 U.S.C. § 846 (Count Two). He was found not guilty of possession with intent to distribute eo-caine, under 21 U.S.C. § 841(a) and (b)(1)(C). On September 5,1990, the court imposed a sentence of life without parole on Count Two. Jerry Millington was found guilty of (1) Conspiracy to distribute and possess with intent to distribute more than 5 kilograms of cocaine and more than 50 grams of cocaine base, under 21 U.S.C. § 846 (Count Two); (2) Interstate travel in aid of racketeering, under 18 U.S.C. § 1952(a) (Count Thirteen). On September 5, 1990, the court sentenced Millington to 405 months on Count Two, and 60 months on Count Thirteen. Millington’s sentences were to run concurrently. Tony Lewis was found guilty of (1) Conspiracy to distribute and possess with intent to distribute more than 5 kilograms of cocaine and more than 50 grams of cocaine base, under 21 U.S.C. § 846 (Count Two); (2) Interstate travel in aid of racketeering, under 18 U.S.C. § 1952(a) (Count Eleven); (3) Unlawful use of a communications facility, under 21 U.S.C. § 843(b) (Counts Sixteen and Eighteen). On September 6, 1990, the court imposed a sentence of life without parole on Count Two, five years on Count Eleven, and four years on Counts Sixteen and Eighteen. Lewis’s sentences were to run concurrently. Keith E. Cooper was found guilty of (1) Conspiracy to distribute and possess with intent to distribute more than 5 kilograms of cocaine and more than 50 grams of cocaine base, under 21 U.S.C. § 846 (Count Two); (2) Distributing cocaine base, under 21 U.S.C. § 841(a)(1) and (b)(1)(C), and 18 U.S.C. § 2 (Count Six); (3) Unlawfully employing a person under 18 years of age, under 21 U.S.C. § 845b (Count Seven); (4) Distributing a quantity of cocaine base, under 21 U.S.C. § 841(a)(1) and (b)(1) (Count Eight); (5) Possessing with intent to distribute 50 or more grams of cocaine base, under 21 U.S.C. § 841(a)(1) and (b)(l)(A)(iii) (Count Nine); (6) Unlawfully employing a person under 18 years of age, under 21 U.S.C. § 845b (Count Ten). On September 6, 1990, the court sentenced Cooper to 320 months on Counts Two, Seven, Nine and Ten, and 240 months on Counts Six and Eight. Cooper’s sentences were to run concurrently. Bernice Hillman McCraw was found guilty of (1) Conspiracy to distribute and possess with intent to distribute more than 5 kilograms of cocaine and more than 50 grams of cocaine base, under 21 U.S.C. § 846 (Count Two); (2) Unlawful use of a communications facility, under 21 U.S.C. § 843(b) (Count Seventeen). On September 4, 1990, the court sentenced McCraw to 235 months on Count Two and 48 months on Count Seventeen. McCraw’s sentences were to run concurrently. David McCraw was found guilty of (1) Conspiracy to distribute and possess with intent to distribute more than 5 kilograms of cocaine and more than 50 grams of cocaine base, under 21 U.S.C. § 846 (Count Two); (2) Distribution of 500 or more grams of cocaine, under 21 U.S.C. § 841(a)(1) and (b)(l)(B)(ii)(II) (Count Nineteen). On September 4, 1990, the court sentenced McCraw to 292 months on Counts Two and Nineteen to run concurrently. John Monford was found guilty of conspiracy to distribute and possess with intent to distribute more than 5 kilograms of cocaine and more than 50 grams of cocaine base, under 21 U.S.C. § 846 (Count Two). On September 5,1990, the court sentenced Monford to 405 months on Count Two. Armaretta Perry was found guilty of (1) Conspiracy to distribute and possess with intent to distribute more than 5 kilograms of cocaine and more than 50 grams of cocaine base, under 21 U.S.C. § 846 (Count Two); (2) Maintaining a premises for an unlawful purpose, under 21 U.S.C. § 856 (Count Three); (3) Unlawful use of a communications facility, under 21 U.S.C. § 843(b) (Count Seventeen). On September 4, 1990, the court sentenced Perry to 405 months on Count Two, 240 months on Count Three and 48 months on Count Seventeen. Perry’s sentences were to run concurrently. In addition, the jury found a basis for the forfeiture of real property located at 1009 Peeonic Place, Upper Marlboro, Maryland; 14518 London Lane, Bowie, Maryland; a 1986 Chevrolet Corvette, and assorted personal property. II. ANALYSIS The defendants appeal their convictions and sentences, alleging a broad array of errors in both trial procedures and sentencing. Many of appellants’ claims are meritless, and we do not address them specifically. For instance, Armaretta Perry argues that her sentence for conspiracy to distribute cocaine base deprives her, as an African American, of equal protection under the due process clause of the Fifth Amendment. We recently rejected that argument in United States v. Thompson, 27 F.3d 671, 678 (D.C.Cir.), cert. denied, — U.S. -, 115 S.Ct. 650, 130 L.Ed.2d 554 (1994), and need not address it here. Similarly, appellants raise a variety of groundless challenges to the sufficiency of evidence supporting individual convictions and the like. For those issues not discussed herein, we reject appellants’ arguments. Instead, we turn our attention to those issues which we consider to merit separate discussion. Some pertain to individual defendants; some apply to all. A. Joint Issues 1. Jury-Related Issues Appellants raise a number of challenges to the District Court’s method of jury selection and administration. They contend that the impaneling of an anonymous jury, the District Court’s limitations on voir dire, and the denial of their motions for a change of venue all violated their Sixth Amendment right to trial by an impartial jury. We reject these claims. We hold that the trial court acted within the scope of its discretion in impaneling an anonymous jury in this ease. The trial judge found adequate need for juror anonymity based on the allegations in the indictment and other submissions before the court, and also because of substantial pretrial publicity. Further, he minimized any prejudicial impact of the anonymous jury by conducting an extensive voir dire on the subject of the prospective jurors’ personal backgrounds and providing jurors with an appropriate explanation for their anonymity. As to the adequacy of the voir dire with respect to the effects of pretrial publicity, we agree with appellants that the District Court’s inquiry fell short of the ideal. However, we find that the voir dire was adequate to assure the impaneling of an impartial jury in the circumstances of this case because the community was not so inflamed against appellants as to cast doubt upon the prospective jurors’ own indications of impartiality. Finally, we hold that the trial court committed no error in denying appellants’ requests for a change of venue because the pretrial publicity here was not so extreme as to create a presumption of prejudice.. a. Anonymous Jury Appellants first contend that the District Court abused its discretion by impaneling an anonymous jury in this ease. On August 25, 1989, the District Court sua sponte issued an order withholding from both counsel and the defendants the identities and addresses of the prospective jurors, and requiring the sequestration of the jury during trial. In a subsequent memorandum opinion, the District Court judge explained that he took this action to protect the jurors because “a realistic threat of violence is present as all defendants are allegedly members of a drug conspiracy that resorted to violence in order to achieve the conspiracy’s ends.” United States v. Edmond, 718 F.Supp. 109, 110 (D.D.C.1989). The District Court stated that preservation of juror anonymity would not impair the defendants’ right to a fair and impartial jury because the demeanor of prospective jurors, along with their answers to questions posed during voir dire, would “provide each defendant with sufficient information to intelligently make peremptory challenges and challenges for cause during the jury selection process.” Id. at 110-11. In challenging this decision on appeal, appellants contend that the circumstances of this case demonstrated no need for an anonymous jury, that the use of such a jury prevented them from utilizing their peremptory challenges effectively, and that the District Court’s instructions impermissibly left jurors with the impression that the court was withholding their names and addresses to protect them from the defendants. We disagree. The question whether a district court may impanel an anonymous jury is one of first impression in this circuit, but we draw guidance from case law developed by our sister circuits. To date, four circuits have held that anonymous juries constitutionally may be impaneled where necessary to protect the integrity of the jury’s decision making process. See United States v. Ross, 33 F.3d 1507, 1519-22 (11th Cir.1994); United States v. Crockett, 979 F.2d 1204, 1215-17 (7th Cir.1992), cert. denied, — U.S. -, 113 S.Ct. 1617, 123 L.Ed.2d 176 (1993); United States v. Scarfo, 850 F.2d 1015, 1021-26 (3d Cir.), cert. denied, 488 U.S. 910, 109 S.Ct. 263, 102 L.Ed.2d 251 (1988); United States v. Barnes, 604 F.2d 121, 140-41 (2d Cir.1979), cert. denied, 446 U.S. 907, 100 S.Ct. 1833, 64 L.Ed.2d 260 (1980); cf. In re Baltimore Sun Co., 841 F.2d 74, 76 n. 5 (4th Cir.1988) (ordering release of juror names to newspaper, but emphasizing that “we do not deal here with a situation in which there existed realistic threats of violence or jury corruption”); Johnson v. United States, 270 F.2d 721, 724 (9th Cir.1959) (affirming district court’s refusal of defendants’ request for exact address of each juror), cert, denied, 362 U.S. 937, 80 S.Ct. 759, 4 L.Ed.2d 751 (1960). Like these courts, we recognize that “[a]n anonymous jury raises the specter that the defendant is a dangerous person from whom the jurors must be protected, thereby implicating the defendant’s constitutional right to a presumption of innocence.” Ross, 33 F.3d at 1519; see Scarfo, 850 F.2d at 1023-26 (discussing impact of juror anonymity upon presumption of innocence); United States v. Thomas, 757 F.2d 1359, 1363-65 (2d Cir. 1985) (same), cert, denied, 474 U.S. 819, 106 S.Ct. 66, 88 L.Ed.2d 54 (1985), and cert, denied, 479 U.S. 818, 107 S.Ct. 78, 93 L.Ed.2d 34 (1986); see also Estelle v. Williams, 425 U.S. 501, 503, 96 S.Ct. 1691, 1692, 48 L.Ed.2d 126 (1976) (stating that presumption of innocence “is a basic component of a fair trial under our system of criminal justice”). We also are mindful of the fact that juror anonymity denies a defendant information that might be helpful in the exercise of his or her right to utilize peremptory challenges during voir dire. See Barnes, 604 F.2d at 142 (“[Tjhere must be sufficient information elicited on voir dire to permit a defendant to intelligently exercise ... his peremptory challenges.”). Yet, neither the right to a presumption of innocence nor the right to exercise peremptory challenges is a constitutional absolute; each, at times, must yield to the legitimate demands of trial administration and courtroom security so long as steps are taken to ensure that the defendant receives a fair trial. See Ross v. Oklahoma, 487 U.S. 81, 88, 108 S.Ct. 2273, 2278, 101 L.Ed.2d 80 (1988) (stating that “peremptory challenges are not of constitutional dimension,” but rather “are a means to achieve to achieve the end of an impartial jury”); Holbrook v. Flynn, 475 U.S. 560, 567-68, 106 S.Ct. 1340, 1344-45, 89 L.Ed.2d 525 (1986) (recognizing that right to fair trial does not invalidate every practice tending to cast the accused in a negative light, but requiring “close judicial scrutiny” of practices threatening the “fairness of the fact-finding process”) (internal quotations omitted). Accordingly, the decision to impanel an anonymous jury requires a court to “balance the defendant’s interest in conducting meaningful voir dire and in maintaining the presumption of innocence, against the jury member’s interest in remaining free from real or threatened violence and the public interest in having the jury render a fair and impartial verdict.” United States v. Amuso, 21 F.3d 1251, 1264 (2d Cir.), cert. denied, — U.S. -, 115 S.Ct. 326, 130 L.Ed.2d 286 (1994). To guide district courts in striking this balance, we adopt the test employed by several of our sister circuits, that, “[i]n general, the court should not order the empaneling of an anonymous jury without (a) concluding that there is strong reason to believe the jury needs protection, and (b) taking reasonable precautions to minimize any prejudicial effects on the defendant and to ensure that his fundamental rights are protected.” United States v. Paccione, 949 F.2d 1183, 1192 (2d Cir.1991), cert. denied, — U.S. -, 112 S.Ct. 3029, 120 L.Ed.2d 900 (1992); accord Ross, 33 F.3d at 1520; Crockett, 979 F.2d at 1215. “Within these parameters, the decision whether or not to empanel an anonymous jury is left to the district court’s discretion.” Paccione, 949 F.2d at 1192; see also Scarfo, 850 F.2d at 1023 (stating that appellate court reviewing decision to impanel anonymous jury “must be particularly deferential to the trial judge, familiar as he is with the local ambience”). Applying that standard here, we conclude that the District Court judge permissibly exercised his discretion in impaneling an anonymous jury. As to the first element of the test, we think the trial judge reasonably found a substantial need for juror anonymity. Our assessment of this issue is aided by a factorial methodology developed by the Eleventh Circuit. Under that analysis, juror anonymity is warranted upon a showing of “some combination” of five separate factors: (1) the defendant’s involvement in organized crime, (2) the defendant’s participation in a group with the capacity to harm jurors, (3) the defendant’s past attempts to interfere with the judicial process, (4) the potential that, if convicted, the defendant will suffer a lengthy incarceration and substantial monetary penalties, and (5) extensive publicity that could enhance the possibility that jurors’ names would become public and expose them to intimidation or harassment. Ross, 33 F.3d at 1520. At least four of these elements were present in this case. The indictment charged that appellant Edmond and the other defendants bélow were the primary participants in a large-scale criminal organization that distributed massive amounts of cocaine in Washington, D.C., and used violent acts to achieve its goals. Indeed, the June 20, 1989, superseding indictment charged appellant Edmond with three counts of murder, two of which also involved appellants Jones and Millington. See Indictment, Grim. No. 89-0162 (June 20, 1989) at 29-30, 33-34, reprinted in J.A. I 29-30, 33-34. While the District Court judge severed these counts and others involving violent crimes for separate trial, they certainly support his conclusion that the defendants in this trial had the capacity to harm jurors. In addition, the defendants faced penalties that are among the harshest the law can impose. Edmond himself was charged with a crime— acting as the leader of a continuing criminal enterprise — carrying a penalty of life imprisonment. See 21 U.S.C. § 848(b)(1). Finally, as appellants emphasize in contesting the denial of their motion for a change of venue, this prosecution, involving what prosecutors called the largest cocaine distribution operation in the history of the nation’s capital, attracted substantial pretrial publicity that the District Court understandably expected to continue throughout the trial. Appellants, however, argue that an anonymous jury was unnecessary in this ease because of what they perceive as the absence of any evidence that they had a history of, or inclination toward, jury tampering. We are not persuaded. While we recognize that a defendant’s history of jury tampering has played a critical role in some appellate court decisions upholding the use of anonymous juries, see, e.g., United States v. Vario, 943 F.2d 236, 240 (2d Cir.1991) (affirming use of anonymous jury where defendant was charged with grand jury tampering), cert. denied, 502 U.S. 1036, 112 S.Ct. 882, 116 L.Ed.2d 786 (1992); United States v. Tutino, 883 F.2d 1125, 1132-33 (2d Cir.1989) (affirming use of anonymous jury where defendant was personally involved in jury tampering in prior case), cert. denied, 493 U.S. 1081, 110 S.Ct. 1139, 107 L.Ed.2d 1044 (1990), we do not believe such evidence is necessary in every case. Rather, we think the District Court in this case reasonably could have ascertained a threat to jurors from the charges in the indictment. Even were we to require some evidence of a defendant’s inclination toward jury tampering, however, we think such evidence existed in the record before the District Court. Before ordering juror anonymity in this case, the trial judge received from the Government an in camera submission describing threats to witnesses. This submission stated that two confidential sources had reported that Edmond’s father intended to “take care of the witnesses” in the case, and that a caller falsely representing herself as a relative of Alta Rae Zanville, an important Government witness, had telephoned an assistant United States attorney in an effort to elicit information about Zanville’s whereabouts. See Submission in Response to Court Order of July 31,1989 Regarding Safety of Witnesses at 1, reprinted in J.A. XVIII 1. Numerous court decisions illustrate that such information, indicating a general willingness to obstruct justice on the part of a defendant or his associates, is more than adequate to suggest a real possibility that a defendant will threaten or otherwise tamper with jurors. See United States v. Aulicino, 44 F.3d 1102, 1116 (2d Cir.1995); United States v. Wong, 40 F.3d 1347, 1376-77 (2d Cir.1994), cert. denied, — U.S. -, 115 S.Ct. 1968, 131 L.Ed.2d 858 and cert. denied, — U.S. -, 115 S.Ct. 1968, 131 L.Ed.2d 858; Ross, 33 F.3d at 1520-21; Amuso, 21 F.3d at 1264; Crockett, 979 F.2d at 1216; Paccione, 949 F.2d at 1193; Scarfo, 850 F.2d at 1017; Thomas, 757 F.2d at 1364. Given this information, we cannot fault the District Court for acting on an assumption that an anonymous jury was necessary. We reject appellants’ assertion that sequestration alone would have sufficed to protect the jurors in this ease. Although sequestration might have addressed the District Court’s concerns with juror safety during the trial itself, it would have done nothing to insulate jurors against retaliatory attacks after the guilty verdict was rendered. “As a practical matter, we cannot expect jurors to ‘take their chances’ on what might happen to them as a result of a guilty verdict.” Thomas, 757 F.2d at 1364; see also Barnes, 604 F.2d at 141 (“Sequestration would have been no protection in the event of a guilty verdict.”). We also reject appellants’ contention that the District Court erred in failing to hold a hearing before ordering juror anonymity. Although a hearing might be required where the need for juror anonymity is doubtful, here the allegations in the indictment and other submissions to the court adequately justified the use of precautionary measures, and the District Court was not obliged to conduct “a trial within a trial to determine whether the alleged wrongdoing could be proven to have occurred.” Thomas, 757 F.2d at 1365; see also United States v. Eufrasio, 935 F.2d 553, 574 (3d Cir.) (“A trial court has discretion to permit an anonymous jury without holding an evidentiary hearing on juror safety, if the court believes there is potential for juror apprehension.”), cert, denied, 502 U.S. 925, 112 S.Ct. 340, 116 L.Ed.2d 280 (1991). Turning to the second element of the test governing impanelment of an anonymous jury, we hold that the District Court took reasonable steps to minimize any prejudicial effects on appellants and to protect their fundamental rights. First, the District Court sought to protect appellants’ right to exercise peremptory challenges by conducting an extensive voir dire with respect to the jurors’ personal backgrounds. The District Court required every prospective juror to complete a 20-page questionnaire that inquired into a broad variety of personal information, including the quadrant of the city in which jurors resided, their educational history, marital status, military service, employment status and work description, their spouse’s and children’s employment, and their experience with crime, drugs, and law enforcement. See J.A. IV 1-228. As we discuss below in assessing appellants’ challenge to the sufficiency of the District Court’s jury selection procedures, the voir dire in this case was imperfect in some respects due to its limited inquiry into the prospective jurors’ exposure and reaction to pretrial publicity. However, the flaws we discern in this aspect of the voir dire are irrelevant to our analysis of the alleged prejudice created by juror anonymity. The voir dire employed by the District Court was more than adequate to compensate for the information denied by juror anonymity. It elicited information about the prospective jurors’ habits, activities, work experiences, and families that was far more extensive and detailed than the generalizations appellants might have drawn from jurors’ mere names and addresses. Thus, it sufficed to enable appellants to make effective use of their peremptory challenges. See Scarfo, 850 F.2d at 1022-23 (agreeing with district court that written questionnaire addressing juror demographics left counsel “in a much better position to assess the suitability of prospective jurors in this case than in most other trials, criminal or civil”) (internal quotations omitted); see also Crockett, 979 F.2d at 1216 (“[A] defendant’s fundamental right to an unbiased jury is adequately protected by the court’s conduct of a voir dire designed to uncover bias as to issues in the cases and as to the defendant himself.”) (internal quotations omitted); Paccione, 949 F.2d at 1192 (same). The District Court also adequately addressed any burden that the anonymous jury imposed on appellants’ presumption of innocence by giving jurors an instruction that minimized the significance of their anonymity. Before jurors filled out their questionnaires, the District Court instructed them that [i]t is a common practice followed in many cases in the Federal court to keep the names and the identities of the jurors in confidence. This is [in] no way unusual. It is a procedure being followed in this case to protect your privacy even from the Court. United States v. Edmond, Crim. No. 89-0162, slip op. at 2 (D.D.C. Sept. 5, 1989) (Preliminary Statement To Be Read To Jury Venire) (“Preliminary Instruction”), reprinted in J.A. I 259. By instructing jurors that the use of an anonymous jury was routine, the District Court avoided the possibility that jurors would view the procedure as an extraordinary precaution signaling a threat from the defendants and, inferentially, the defendants’ guilt. See Tutino, 883 F.2d at 1133 (holding that identical instruction was “sufficient to ensure that the jury would not draw improper conclusions from the preservation of their anonymity”). In addition, the District Court immediately followed its anonymity discussion by instructing jurors that the defendants enjoyed a presumption of innocence, and repeated that instruction both at the beginning and conclusion of the trial. See Preliminary Instruction at 3, reprinted in J.A. I 260; Trial Tr. (Sept. 18, 1989) at 46, reprinted in J.A. VIII; id. (Dec. 1, 1989) at 74, reprinted in J.A. XVII. This step further mitigated any prejudice from the anonymous jury procedure. See Tutino, 883 F.2d at 1133; see also Crockett, 979 F.2d at 1216 (finding repeated instructions on presumption of innocence to protect defendant from possibility of prejudice resulting from impan-elment of anonymous jury); Vario, 943 F.2d at 241 (holding that trial court took adequate steps to safeguard defendant’s presumption of innocence where judge failed to instruct jurors as to reason for their anonymity, but fully instructed them on presumption of innocence). Nevertheless, appellants find fault in the District Court’s instructions with respect to sequestration of the jury and discussion of the case. During the courtroom phase of the voir dire, the District Court told jurors that, [b]ecause of the close scrutiny and legitimate interest by the press and others in this case, and in order to avoid any outside or extra-judicial pressures or conduct which might affect the integrity of the right to a trial by jury process, the Court has decided to sequester the jury from the time of its selection until the conclusion of the trial and the conclusion of the jury’s deliberations. Hearing Tr. (Sept. 11, 1989) at 1902, reprinted in J.A. VII. Later, in admonishing jurors not to discuss the case during a lunch break that interrupted the judge’s final instructions, the District Court stated: I have told you from the beginning not to discuss the case. I have told you that I would tell you when it is appropriate to discuss the ease. It’s not appropriate to discuss the case, but again, just like the fact that your anonymity has been preserved and that you’ve been sequestered, I am going to ask the marshal to be with you during the luncheon recess, not because nobody mistrusts you but to protect you. Trial Tr. (Dee. 1,1989) at 93-94, reprinted in J.A. XVII. Appellants insist that the District Court’s references to “outside dr extrajudicial pressures” and to the need for a marshal to “protect” jurors during a lunch break conveyed the message that the trial judge perceived a threat from the defendants. We think appellants infer too much from the trial judge’s statements. Prefaced as it was by a discussion of press interest in the case, the District Court’s reference to “outside or extra-judicial pressures” would not naturally have singled out the defendants as the source of such pressures. Nor would the District Court’s statement that a marshal would “protect” the jurors during their lunch break necessarily have cast a shadow of guilt upon the defendants. We recognize that a trial judge’s acknowledgment that the jury requires protection always has the potential to reflect negatively upon a defendant. However, the instruction here appears more than anything to have been a palliative designed to soften the inference that the trial judge felt some supervision was necessary to prevent jurors from discussing the case. In any event, given the totality of the court’s instructions, we think the jurors most naturally would have interpreted the District Court’s statement consistently with the court’s earlier explanation for juror anonymity — ie., that the court was taking all measures necessary to “protect [the jurors’] privacy ” from all parties, “even from the Court.” Preliminary Instruction at 2 (emphasis added), reprinted in J.A. I 259. In sum, we find no error in the District Court’s decision to impanel an anonymous jury. Even appellants agree that this was an unusual case for a number of reasons, including the size of the alleged drug conspiracy, the seriousness of the charges, and the large amount of corresponding publicity. For these reasons and the others that we have stated, the District Court’s unusual decision to impanel an anonymous jury was not an abuse of discretion. b. Voir Dire Appellants next argue that the District Court’s manner of conducting voir dire in this case was insufficiently probing with respect to the effects of pretrial publicity. As we have discussed, the arrest and prosecution of Edmond and his codefendants generated substantial news coverage. Appellants cite approximately 50 news reports dealing in some way with Edmond or his co-defendants that were published during the five-month period between Edmond’s arrest and the beginning of appellants’ trial, and they point out that some reports linked Edmond and other appellants to Colombian drug cartels and as many as 30 homicides. In the wake of such publicity, appellants contend, the District Court’s manner of conducting voir dire, which consisted of administration of the previously discussed questionnaire followed by generalized questioning of groups of prospective jurors, was inadequate to ensure that the jury ultimately impaneled was free from prejudice against the defendants. Although we agree that the voir dire with respect to pretrial publicity was imperfect, we reject appellants’ argument that the shortcomings in the trial judge’s inquiry were so serious as to constitute an abuse of discretion under the circumstances of this ease. The Sixth Amendment right to jury trial “guarantees to the criminally accused a fair trial by a panel of impartial, ‘indifferent’ jurors,” but it does not require “that the jurors be totally ignorant of the facts and issues involved.” Irvin v. Dowd, 366 U.S. 717, 722, 81 S.Ct. 1639, 1642, 6 L.Ed.2d 751 (1961). Rather, “[i]t is sufficient if the juror can lay aside his impression or opinion and render a verdict based on the evidence presented in court.” Id. at 723, 81 S.Ct. at 1643. Our cases recognize that protection of this right “demands that voir dire examination serve as a filter capable of screening out” those jurors whose prejudice against the defendants renders them incapable of performing this function. United States v. Liddy, 509 F.2d 428, 434 (D.C.Cir.1974) (en banc), cert. denied, 420 U.S. 911, 95 S.Ct. 833, 42 L.Ed.2d 842 (1975). “Without an adequate voir dire the trial judge’s responsibility to remove prospective jurors who will not be able impartially to follow the court’s instructions and evaluate the evidence cannot be fulfilled.” Rosales-Lopez v. United States, 451 U.S. 182, 188, 101 S.Ct. 1629, 1634, 68 L.Ed.2d 22 (1981) (plurality opinion). Despite the significance of voir dire as a safeguard against juror bias, however, the trial judge’s administration of this process “is not easily subject to appellate review.” Mu’Min v. Virginia, 500 U.S. 415, 424, 111 S.Ct. 1899, 1904, 114 L.Ed.2d 493 (1991) (quoting Rosales-Lopez, 451 U.S. at 188, 101 S.Ct. at 1634). As the Supreme Court has observed, [t]he trial judge’s function at this point in the trial is not unlike that of the jurors later on in the trial. Both must reach conclusions as to impartiality and credibility by relying on their own evaluations of demeanor evidence and of responses to questions. In neither instance can an appellate court easily second-guess the conclusions of the decisionmaker who heard and observed the witnesses. Rosales-Lopez, 451 U.S. at 188, 101 S.Ct. at 1634 (citations omitted). The trial judge also is far more likely than an appellate court to be familiar with the atmosphere surrounding the trial, and the resulting potential for juror prejudice from publicity, racial issues, or other factors. For this reason, we generally defer to the District Court’s determinations as to the questions to be asked of prospective jurors. See Mu’Min, 500 U.S. at 424, 111 S.Ct. at 1904 (“[T]he trial court retains great latitude in deciding what questions should be asked on voir dire.”); see also Fed.R.CRIM.P. 24(a) (providing that, in examining prospective jurors, district court may ask such questions “as it deems proper”). It is well-established in this circuit that “[t]he trial judge, acting under Rule 24(a), Fed.R.Crim.P., is accorded broad discretion to mold the manner and mode of voir dire examination, to fit the demands of the case at hand, and provides no basis for reversal unless he abuses his discretion, and there is substantial prejudice to the accused.” Liddy, 509 F.2d at 434-35 (footnotes omitted); accord United States v. Washington, 705 F.2d 489, 495 (D.C.Cir.1983); United States v. Haldeman, 559 F.2d 31, 64-65 (D.C.Cir.1976) (en banc), cert. denied, 431 U.S. 933, 97 S.Ct. 2641, 53 L.Ed.2d 250 (1977); United States v. Robinson, 475 F.2d 376, 380 (D.C.Cir.1973); United States v. Bryant, 471 F.2d 1040, 1044 (D.C.Cir.1972), cert. denied, 409 U.S. 1112, 93 S.Ct. 923, 34 L.Ed.2d 693 (1973). While we grant district courts wide latitude in the conduct of voir dire, however, we have established rules to guide their discretion in cases involving substantial pretrial publicity to ensure that the trial judge’s procedures meet “the essential demands of fairness.” Haldeman, 559 F.2d at 64 (internal quotations omitted). In Bryant, 471 F.2d at 1044-45, we endorsed a recommendation of the American Bar Association Project on Standards for Criminal Justice, Standards Relating to Fair Trial and Free Press, which requires individual examination of jurors regarding pretrial publicity “[wjhenever there is believed to be a significant possibility that individual talesmen will be ineligible to serve because of exposure to potentially prejudicial material.” ABA Standards, Fair Trial and Free Press § 3.4(a) (1968). As we made clear in Liddy, [wjhether such a “significant possibility” exists in a given case depends on such circumstances as the amount and pervasiveness of the publicity, its tone or quality, its proximity to the date of trial, and the nature of the particular case. The totality of the circumstances controls whether the likelihood of prejudice is too great to permit the jurors’ avowals of impartiality to be accepted. 509 F.2d at 435 (footnote omitted). We think another circumstance to be considered in assessing the “significant possibility” of juror ineligibility arises where, as here, one factor supporting impanelment of an anonymous jury is a concern over extensive trial publicity. In such eases, the trial judge obviously must be alert to the danger that media attention of a level sufficient to support the use of an anonymous jury may bring prospective jurors before the court with biases against the defendants already established. The voir dire conducted by the District Court in this case barely satisfied the minimum requirements under these standards. We agree with appellants that the District Court’s inquiry was less than ideal in a number of ways. However, in the circumstances of this case, we do not think that the flaws in the District Court’s voir dire procedures were so egregious as to constitute an abuse of the trial judge’s broad discretion. As we have' discussed, the District Court began voir dire in this case by asking prospective jurors to fill out 20-page questionnaires. These questionnaires asked about the prospective jurors’ exposure to various media, inquiring as to the newspapers and television programs most regularly read and viewed by each juror and the number of hours per day devoted to each. However, the questionnaires did not ask prospective jurors whether they had learned of the defendants or the case by virtue of their exposure to such media. Rather, the questionnaire’s sole inquiry regarding the prospective jurors’ knowledge of the case was a question that presented a list of 33 names, including those of the defendants, and then asked each member of the venire whether he or she “personally, or any member of [their] immediate family, know or have any connection (personal, business, or social) with any of these individuals, or have heard of any of them.” J.A. IV16. The question then asked the prospective jurors to state how they knew, were connected with, or had heard of the persons whose names they recognized. See id. Of the 218 prospective jurors who responded to this question, 68 had heard of at least one defendant due to pretrial publicity, 11 either knew one of the defendants through personal contacts or failed to answer the question coherently, and 139 never had heard of any of the defendants from any source. See Final Brief for Appellee at 79. Appellants contend that these results shed no light on the impact of pretrial publicity in this case because of the indirect phrasing of the questionnaire’s inquiries. We agree that, as a general matter, inquiries such as these are too oblique to yield a thorough assessment of the effects of media coverage upon the venire. Questions regarding the prospective jurors’ general exposure to various media may allow for speculation as to whether such jurors have been exposed to pretrial publicity, but they hardly substitute for direct questions asking whether members of the venire have read or seen reports about the case, and what opinions they have formed as a result. Moreover, prospective jurors may not automatically recognize that a question asking whether they have “heard of’ the defendants is probing for knowledge gained through media reports, especially where, as here, such a question is embedded in an inquiry as to whether members of the venire personally know or have any connection with the defendants. However, to acknowledge that the District Court’s method of inquiry was less than ideal as a general matter is not to say that it constituted reversible error in this case. We conclude that, in the circumstances presented here, the District Court’s questions adequately measured the venire’s exposure to pretrial publicity. As numerous media reports make clear, this prosecution was known from the beginning as the “Rayful Edmond case,” or simply “the Edmond ease,” and Edmond’s name was featured prominently in nearly every article and broadcast about the progress or background of the case. See, e.g., Nancy Lewis, Edmond, 28 Others Indicted in Drug Ring, Wash. Post, May 16, 1989, at Bl; Mike Folks, Judge Shields Witnesses in Edmond Cocaine Case, Wash. Times, Apr. 27, 1989, at B2; Nancy Lewis, Possible Conflicts Delay Hearing in Edmond Case, Wash. Post, Apr. 20, 1989, at Dl. Because the media had seized upon Edmond’s name as a label for the case as a whole, the trial court’s practice of asking jurors whether they had “heard of’ any of the defendants — including Edmond — was reasonably likely to gauge the number of prospective jurors who had learned about the case.through news reports. In addition, the fact that 68 of the 218 members of the venire responded to this question by explaining that they had heard of one or more of the defendants through the media indicates that prospective jurors understood the questionnaire to call for responses based on their knowledge of the defendants from any source— including pretrial publicity. Appellants also argue that the oral portion of the voir dire was deficient due to its generalized questioning of groups of jurors and the compound form of the trial judge’s question regarding publicity. After the prospective jurors had completed their questionnaires, the District Court divided them into several large groups for questioning. The trial judge asked each group a series of questions, one of which dealt with pretrial publicity. Although the wording of this question varied slightly on each occasion it was asked, a representative sample is the following: Now as to those of you who may have read or seen something about this case, the question, therefore, is whether you would be able to put aside anything you might have read or heard about this case before this very moment and render a fair and impartial verdict based solely on what you see and hear in this courtroom after you are selected. I will assume that all of you, for the moment, have read about this or similar cases. I will further assume that those of you who do not rise at this point, ... even though you have read or seen something in the electronic or print media, as good citizens of this community, agree, if selected, to render a fair and impartial verdict based solely on the evidence in this case. If you cannot do that, please rise at this time and come forward to the bench. Hearing Tr. (Sept. 12, 1989) at 2089, reprinted in J.A. VII. The trial judge and counsel individually questioned those prospective jurors who rose in response to this general question about publicity, as well as other questions, at the bench. This style of questioning hardly commends itself. The trial judge’s inquiry failed to ask directly whether prospective jurors had been exposed to pretrial publicity; instead, the judge conflated that question with the broader inquiry whether, notwithstanding their presumed exposure to such publicity, they could render a verdict based solely on the evidence adduced at trial. Not only does such questioning confuse the two lines of inquiry, but it allows jurors to assess their own impartiality before the court even has determined the extent of their exposure to the media. Indeed, this latter flaw alone can rise to the level of reversible error in cases where extreme pretrial publicity has inflamed the local community against the defendants. See Patton v. Yount, 467 U.S. 1025, 1031, 104 S.Ct. 2885, 2888, 81 L.Ed.2d 847 (1984) (“[Ajdverse pretrial publicity can create such a presumption of prejudice in a community that the jurors’ claims that they can be impartial should not be believed.”); see also United States v. Davis, 583 F.2d 190, 197 (5th Cir.1978) (“The juror is poorly placed to make a determination as to his own impartiality.”); Silverthorne v. United States, 400 F.2d 627, 639 (9th Cir.1968) (“[Wjhether a juror can render a verdict based solely on evidence adduced in the courtroom should not be adjudged on that juror’s own assessment of self-righteousness without something more.”) (emphasis omitted). Here, however, the District Court simply was not confronted with such a “wave of public passion engendered by pretrial publicity” as to cast doubt upon the prospective jurors’ own indications of impartiality. Mu’Min, 500 U.S. at 429, 111 S.Ct. at 1907 (internal quotations omitted). The results of the voir dire itself demonstrate that the community was not inflamed against the defendants. As we have discussed, less than a third of all prospective jurors ever had heard of any of the defendants from the media, much less formed an opinion about their guilt. In addition, of 68 jurors struck for cause by the trial judge, only 12 stated that pretrial publicity had prejudiced them against the defendants. By contrast, cases in which courts have discounted juror claims of impartiality have involved venires far more severely infected by pretrial publicity than the panel at issue here. In Irvin, for example, the Supreme Court accorded “little weight” to jurors’ claims of impartiality where 268 members of a 430-person venire were excused for cause after admitting that they harbored “fixed opinions as to the guilt of petitioner,” and “almost 90% of those examined on the point ... entertained some opinion as to guilt — ranging in intensity from mere suspicion to absolute certainty.” 366 U.S. at 727, 728, 81 S.Ct. at 1645. Other cases, though presenting less extreme circumstances than Irvin, also have involved more pervasive publicity than existed in this case. See, e.g., Jordan v. Lippman, 763 F.2d 1265, 1269, 1281 (11th Cir.1985) (discounting “conelusory protestation[s] of impartiality” where “a vast majority of the potential jurors had heard of or r