Z:gnu-www-ja-eldred-amicus--fddc0d-What the Fifth Amendment prohi/en

What the Fifth Amendment prohibits with respect to interference with existing rights in real property should not be permissible where the rights being destroyed by legislative changes in property rules are rights to the freedom of speech and publication. The Court of Appeals dismissively viewed petitioners as seeking to enforce rights to use the copyrighted works of others. 239 F.3d, at 376. On the contrary, petitioners claim only their constitutional entitlement to use the works that would have entered the public domain, as required by the law in effect at the time the particular statutory monopolies at issue were granted, had it not been for unconstitutional Congressional interference.