The Supreme Court handed down three decisions today. There was one 5-4 decision (really a 4-1-4), with an interesting line-up: Justice Scalia delivered the judgment of the Court and wrote an opinion joined by Souter, Ginsburg and Thomas. Justice Stevens concurred in the judgment. Justice Alito dissented, joined by the Chief Justice and Justices Kennedy and Breyer. SCOTUSBlog has all the details here and here.
[Note: Post edited to correct a minor error.]