Given that most of the shooting in a school attack happens without warning and is over within a few minutes, rapid response is essential. Would a Police Dog under the control of a patrolling officer be effective against a shooter? I believe it would. The dog could also be outfitted with a bullet proof vest to increase it's chances of surviving. What do you think?
What works will never become common practice. A vicious dog would scare the hell out of would-be attackers but also scare children or harm unruly students. Teachers with guns would be a threat to Swat teams. I suggest a fence topped with razor wire. Metal detection equipment. Security similar to airports with TSA officials at every entrance/exit. 99. 99% of the problem solved.
With the technology today why do we have schools?
Why not be creative and cutting edge and build the infrastructure so that kids can be taught from home instead?
Public Schools are pointless in today time and the money wasted on teachers, classrooms and books could be used to advance society and have it where kids work off IPads from home...
Oh well the Teachers Union would never go for this and many Conservatives would most likely not go for it either...
So here is my other idea and make a moat, load it with something deadly and one way in and out...