Is the trial judge's failure to inquire the jury as to its exposure to six newspaper articles during the trial?

Defendants also allege error in the refusal of the trial judge to inquire of the jury as to its exposure, if any, to six newspaper articles which appeared during the two-month trial. The trial judge, of course, has the duty to detect any contaminating influences on the jurors' deliberations and take appropriate steps to rectify improprieties. United States v. Polizzi, 500 F.2d 856, 880-881 (9th Cir. 1974), cert. denied, 419 U.S. 1120, 95 S.Ct. 802, 42 L.Ed.2d 820 (1975). See Silverthorne v. United States, 400 F.2d 627, 643 (9th Cir. 1968), appeal after remand, 430 F.2d 675 (1970), cert. denied, 400 U.S. 1022, 91 S.Ct. 585, 27 L.Ed.2d 633 (1971).