CNN CNN Newsroom With Carol Costello December 3, 2015 15:16:00
Cover in your own building or just watching this scene unfold. >> i was recording it and just watch it up fold. >> could you believe what was happening? >> in ways, yes, because of the training we've been going through with sandy hook with the school district. we've been going through training, active shooting. every quarter we have a seminar to work with homeland security, fbi. so, to me, just instinctual making sure everything is okay. i'm that kind of person i'd rather see it come. my colleagues are barricaded in conference rooms at that time. >> it's good you went through that training. th...
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