The Supreme Court has refused to hear a government appeal of Mukasey v. A.C.L.U., a case about the constitutionality of the Child Online Protection Act of 1998 (COPA). This action effectively kills COPA after a very long legal battle.
Read more about it at "After 10 Years, an Infamous Internet-Censorship Act is Finally Dead," "Supreme Court Deals Death Blow to Antiporn Law," and "Ten Years of Futility: COPA Finally, Truly Dead."