Don't curse me or anything, as you asked for an opinion, but why would normal people need AR-15s? Add to that the fact that some people own not one, but many! To do what with them? Now, I understand the point of owning a gun, especially since we are talking about protecting your life/property, but when almost anyone can go and buy automatics you're bound to run into a few nut cases here and there. Unfortunately there is no easy solution for this problem, as both sides have their own part of the truth.