The goalOne of parent's concerns in the article is the mental aspects for a teacher. First, whether they could pull the trigger, legitimate question prolly. But the main concern would be the potential for post traumatic stress for the teacher after shooting a perp.
That seems like a pretty stuipid argument to me. Is the goal here to save kids?
I'd think it would be safe to say that everyone involved, armed or not, is going to have ptsd afterword.
For teachers is to teach; not save or protect kids from a violent encounter