changed. you described it well, i'm from boston, too. i remember as a kid, i used to think i got the day off from school because of the boston marathon. >> exactly. >> in fact, it's patriots day, this holiday that we celebrate there. it's very festive. it's just not the place where your mind is ready or poised to shift into any kind of negative or kind of crisis coverage. and so i'm just wondering if you can kind of replay it in your head those fractions of seconds where you went from what you thought you were doing, you actually thought you were covering a marathon and a wedding. when you went from that to realizing, you are covering a major historic american disaster. >> yeah, we knew it immediately. the kind of carnage we saw, this wasn't something small. some people had said early on, oh, maybe a man hole blew up. i couldn't imagine that a man hole blew up could cause this horrific situation. what we saw, i knew instantly