sadly, no matter what we do to make schools safer, those that would harm the innocent will find a way. if not in school, on the bus going home, or gathered at a bus stop. movie theaters & restaurants have repeatedly been targets. no surprise to me if a graduation ceremony is a target soon. too many people in too small a space with too few exits and damn few (if any) LEO there. "worst" thing that ever happened here was chickens released in the crowd. that too, will change.how the youngsters can survive a school shooting.