This is an excellent read about how gun control DOES NOT WORK, while no one study is 100%, these guys pretty much nailed it.
whether you're pro or anti, strongly encourage all to give this a read, it reinforces everything I believe about firearms.
http://www.law.harvard.edu/students/...useronline.pdf
and we all know that criminals use .50 sniper rifles ALL the time, as well as bayonets and grenade launchers. What will we ever do!