discussed Cited "see" United States v. John Andrew Greschner, Ronnie Joe Criswell Id. at 809 ; see Gordon v. United States, 438 F.2d 858, 872 (5th Cir.) ("Mares did not hold that a defendant was entitled as a matter of law to have the jury polled on the question of whether any member had been exposed to extrajudicial publicity’), cert. denied, 404 U.S. 828 , 92 S.Ct. 142 , 30 L.Ed.2d 56 (1971).