Of gun free zones. Gun free zones have attracted and practically invited mass shootings in our country for decades. Gun free zones attract people who would do this because they know they can impose maximum damage at minimum risk. Congress seemed to have thrown all common sense out the window when they passed this law. I guess they thought a shooter would see the "GUN FREE ZONE" sign and just turn around and go home. If the shooters thought they might catch a bullet in the forehead when they walked through the door they probably would have stayed home. Sorry for the rant, I'm just frustrated that our schools do not have layered security and armed personnel and can only depend on luck of the draw to defend themselves at this point in time. Some nut is going to do this again and all we can do is pray that it is not our kids school. And that scares the shit out of me to have to think like that.