mmaterial to the illegality of Pelton's agreement with Rich to violate § 2121, for consent is neither a defense to a {dation charged under § 2421, GOSS& United States, 287 U.S. 112, 119, 53 S. 35, 77 L.F.1 206 (1982); Hattaway United States, F.24 481, 438 (5th . 1968); Wiley United States, 2