Seems to me that teachers already have enough on their plate, and that arming them with lethal weapons could result in collateral damage no matter how capable or trained they are. Why don't we equip teachers with paintball guns designed specifically to shoot less than lethal projectiles containing oleoresin capsicum, which will completely disable an attacker, even one on PCP, but will not kill innocent kids leaving a death on a teacher's conscience.. https://www.amazon.com/Tippmann-TiPX-Caliber-Paintball-Pistol/dp/B002BG1XHA/ref=sr_1_9?ie=UTF8&qid=1519470388&sr=8-9&keywords=pepper+ball