(3d Cir. 2006) ("[T]he government must show that the criminal sexual act was a dominant purpose of the trip, not a merely incidental one.") (citing United State/. Hayward, 359 F.3d 631, 638 (3d Cir. 2004)) (emphasis added). That interpretation of the law is obviously correct. While § 2423(b) is relatively new—it firs