When I saw the title of the show (as I am sure everyone else did) I knew what we were in for, but I must say 20/20 out did thereselves this time. David you are dead on with your comments. If I put gloves, a long shirt, and a helmet on a trained police officer and told the gunman who in the room was carrying even the most highly trained would no doubt suffer the same outcome. Next time maybe try handcuffing the student to the table. The point is an individual who is trained in self defense would not put themselves in the center of the room, front row, and have unfamiliar equipment as in this scenario. I only hope if I am ever in a situation with a hostile gunman that someone (perhaps me) has a concealed weapon, in fact the more the better. This show was nothing but propaganda to demonize guns. I don't understand why people like this do not won't us to be able to defend ourselves.