Glenn Greenwald explains why today's Supreme Court Decision, which declared Section 7 of the Military Commissions Act of 2006 unconstitutional, is a triumph of justice and the American way. He also explains why it's frightening that it only passed 5-4…and wouldn't have if George W. Bush had had the chance to replace John Paul Stevens or Ruth Bader Ginsburg with another Justice in the Scalia/Roberts mold. Which is just what John McCain says he'd do.