Lizzie asked yesterday: "WTF does the USA not ban guns???"

Umm... because there are several hundred million guns already out there? And because many paranoid owners have stashed them away, ready to start a civil war if anyone tries to ban them?

They rationalize that they NEED guns in case their 'rights' are violated. In the meantime, the guns get used-- there are FAR too many guns that are FAR too easy to get.