Hi AB. I'm glad your friends thought of you.:)I am not sure how I feel about teachers being armed. Might end up being a disaster. I think they should install metal detectors at the front door, hire off duty police like some do already. It is sad to even think about. What a day we live in now huh? Kid can't even go to school without worrying about their safety.
I think that if a teacher goes through the training to be qualified to carry a concealed weapon they should be able to carry in schools also. I do think that maybe they would need some EXTRA training and EXTRA screening considering they would be carrying around kids. I believe that in a lot of the cases fewer lives would have been lost had somebody been prepared to take the shooters out. Another thing, if a school (or other place) is a "gun free zone" that is just an open invitation for some nut to come in and murder helpless people. They don't need to know who else is carrying a gun or where they might run into them. That is just my opinion.
Those teachers in San Antonio were learning hand to hand combat, not how to shoot.