"Thomas, 463 F.2d at 1063 ( citing Margoles v. United States, 407 F.2d 727, 733, 735 (7th Cir. 1969)); see also United States v. Wilson, 715 F.2d 1164 (7th Cir. 1983). In this case, the record establishes that the district court frequently warned the jury during the trial that Libya and its activities must not influence the jury's decision.

Although not dispositive on the issue presented here, those cases are instructive. In United States v. Perrotta, 553 F.2d 247 (1st Cir. 1977), we adopted the standard annunciated in Margoles v. United States, 407 F.2d 727 (7th Cir.), cert. denied, 396 U.S. 833, 90 S.Ct. 89, 24 L.Ed.2d 84 (1969): [W]here prejudicial publicity is brought to the court's attention during a trial . . . the court must ascertain if any jurors who had been exposed to such publicity had read or heard the same.