while I agree with this if you combine it with proper training I think it would be ok. I don't think anyone is gonna advocate just giving guns to a teacher that doesn't know what they are doing. In the instance of my friend, I'd trust him carrying a gun in a heartbeat because he has been shooting as long as I have and shoots far more often than I. Now my girlfriend on the other hand would be a big ass no because she has zero experience. That is about to change however The other side of this that if kids know the teachers are there and can be a "first line of defense" then I think it could possibly deter these kind of acts. On the other hand, kids like the columbine ones that are gonna kill themselves anyway it clearly wouldn't matter one way or the other as a deterrent factor