Whether the district judge must explain the knowledge element in a child pornography plea colloquy

QUESTIONS PRESENTED FOR REVIEW 1. The Sixth and Ninth Circuits are split on whether, during a plea colloquy in a child pornography case, the district judge must explain to the defendant the knowledge element as interpreted by this Court in United States v. X-Citement Video, Inc., 513 U.S. 64 (1994). The Sixth Circuit has answered in the affirmative, the Ninth in the negative. 2. Whether, after the district court has ordered evidence suppressed, the government can circumvent the exclusionary rule by obtaining a post-hoc warrant from a different judge. --prefix-