I understand that if someone wants to buy a gun badly enough they'll find a way, but limiting ways for mentally unstable people to get a hold of weapons will go a long way to ensure acts of mass murder don't happen as frequently as they are occurring now. I'm fine with people having a six-shooter at home to protect themselves or someone having a hunting rifle for sport. On the other hand, assault rifles and high-capacity magazines serve no purpose in everyday life - it's meant for the battlefield. When the 2nd amendment was made they didn't have guns that enabled a single person to inflict mass casualties in a matter of seconds; not every right given in the 1700's should be applied verbatim in 2012.