pressly requires that the crime be committed “knowingly,” and that requisite mental element applies as to each element of the crime. United States v. XCitement Video, Inc., 513 U.S. 64, 68-69 (1994); United States v. Meek, 366 F.3d 705, 718 (9" Cir. 2004); United States v. Root, 296 F.3d 1222, 1227 (11™ Cir. 2002); Unit