Early one morning several teachers and staffers at a Connecticut grade school were in a meeting. The meeting had been underway for about five minutes when they heard a chilling sound in the hallway. (We heard pop-pop-pop, said one of the staffers later.) Most of them dove under the table. That is the reasonable thing to do, what they were trained to do, and that is what they did. But two of the staffers jumped, or leapt, or lunged out of their chairs and ran toward the sound of bullets.