Let the government allow for house holders, public access buildings, school teachers, etc' etc' to possess taser/stun guns, so that brain dead psychopaths can be quickly disabled and shackled or whatever - no killing, no need for bullets.

I like the flashlight stun gun, looks just like any normal flash torch but with one hell of a kick.

http://www.stunguns-usa.com/diablo

would need to be careful with kiddies around obviously but in reality the security benefit assurance would have to outweigh the safety element.