Only in America although other countries allow carrying guns too. I was reading the bios of all the kids and two teachers on BBC website. I cried. Americans are completely nuts: a mixture of loose gun control laws and vigilante culture and super heros. It must have been a horrific bloodbath. On Demcoracy Now!, the host said the gun used was super powerful and that the children were unrecognizable after the shooting. That DNA tests had to be used to identify the children and teachers. America is very sick in the head.