We dont disagree but there are a lot of people arguing control to the point that they should have access to all type of crazy firearms. They may not have half a brain, but they are political power houses. Also no one knows who is mentally unstable, and no one can predict when someone is who seems sane is going to crack. If you could then seemingly sane people in areas where "this never happens" would be able to be controlled. You cant control that...thats an illusion, and while people try to control it innocent people will die from bullets fired by social parasites.
But just because of this doesn't mean we should all have our rights taken away. Like I said it's the same issue with the patriot act and terrorism. The only thing that should really change with gun is how they are obtained and where they can be used, not what can be owned. Though I don't see the need for an M60, but it's our rights. Not condoning RPGs here.