United States v. Liu, 731 F.3d 982 (9th Cir. Oct. 1, 2013) (federal conviction of copyright infringement under 17 U.S.C. 506(a) requires proof that defendant knew he was acting illegally, rather than simply knew he was making copies; knowingly trafficking in counterfeit labels under 18 U.S.C. 2318(a)(1) requires knowledge that the labels were counterfeit).