they didn t move until they found out what happened and the principal was killed and some other people were shot, and i don t know anything else. susan paige and david gregory here with me in the studio as we watch these scenes unfold and we re waiting for law enforcement news conference. david, as the father of three children, three young children, you know that schools are now in a completings completely different zone preparing for these kinds of emergencies, and teaching children how to deal with it. that piece is so important as well. we watch these pictures, and we await details. all of the horrifying details as these numbers come in. some of the context is that, as i say, schools are doing all kinds of drills. they do fire drills. in the west they do earthquake drills, but they re also doing lockdown drills where they anticipate a shooter coming on campus and getting the kids in a