The Supreme Court handles landmark cases every year and 2008 was no exception. In June, the justices handed down a 5-4 decision on the most important case to address the right to keep and bear arms in several decades. At issue was the 32-year-old DC gun ban. So what the the justices rule and how significant is this decision to the long-running debate over the second amendment to the Constitution? We ask Robert Levy of the Cato Institute, who served as co-counsel in the case against the DC gun ban.