i think security should be increased in public areas of the U.S; such as schools,theaters,and heavily populated businesses building because guns are to easily accessible in the USA.
often criminals can seam fine at first to get a gun and then start an attack; on top of this many children are stealing guns from their parents or getting them in gangs which leads to more dangerous criminals and much more killings.
most killings occur in heavily populated areas especially in cases like columbine where the person tries to set some sort of record.
this is a growing issue in america and i think if there was just guards stationed at the door in these high population buildings and screened people for weapons better there would be a lot less killing in the USA.
we need to make the USA safe again.