Following our opinion of May 18,1981, as corrected on September 8, 1981 (656 F.2d 1302), the government petitioned for a writ of certiorari. The writ was granted by the Supreme Court of the United States.

On June 14, 1982, that Court vacated the judgment of this court and remanded for further consideration in light of United States v. Ross, 456 U.S. -, 102 S.Ct. 2157, 72 L.Ed.2d 572 (1982).

*314 Having considered that opinion, we conclude that Ross controls. This court’s opinion is vacated, the judgment of the district court is AFFIRMED, and the mandate of this court shall issue now.