You certainly make some good points but a couple of things. First we'll never know if a teacher's willing to use deadly force until faced with it. Claiming to be able to and actually doing it are two different things. Of one thing I'm sure. If you pull a gun on someone you had better be ready to use it or risk them takeing your gun and using it on you! And that in turn could set off a chain reaction we really wouldn't want to see. I certainly agree that it would be better to have WELL QUALIFIED people in the school with firearms than no response at all. Probally the whole thing could be over befor the SWAT team even got called. That would be great. but again, takeing a life, even a bad guys, can be a hard thing to do. We are taught from early life the value of life and it goes against the grain to do so.
This is a good subject and I'd hope theres an answer somewhere but I just don't know what it is for sure. I don't think arming to many teachers is the answer tho. Probally there is no good answer for this. It's a sad thing that these things do happen, but they do and always have. We just hear about it more now. Kinda makes me wonder just how civilized we really are.