Mythbusters sorry for cannonball misfire

If you've seen the Mythbusters on the Discovery Channel, you know how much they love to blow things up. But you also know how CAREFUL they are to be safe. So it was a surprise this week to learn that while shooting an episode about projectiles being shot from a cannon, something went really wrong. For more informaton please visit http://www.hlntv.com/video/2011/12/08...