Authorities Cited: United States Code 18 U.S.C. § 2252(a)(2) Supreme Court 304 U.S. 458, 464 317 U.S. 269, 274 376 U.S. 776, 776-777 450 U.S. 261, 265 470 U.S. 51, 58 479 U.S. 314, 107-328 489 U.S. 288, 310 507 U.S. 725, 732-734 516 U.S. 193, 116-197 528 U.S. 470, 480 530 U.S. 466 540 U.S. 965 Circuit Courts 804 F.2d 1537, 1543 242 F.3d 989, 990 269 F.3d 1250, 1288 273 F.3d 991 374 F.3d 10236 391 F.3d 1327, 1334-1351 398 F.3d 306, 312 398 F.3d 540, 546-547 401 F.3d 1261 401 F.3d 1262 406 F.3d 778, 789 407 F.3d 476, 487-488 Federal Rules of Appellate Procedure Fed. R. App. P. 4(b)