my partner and i were standing on the balcony watching. that was the moment that she started crying, when we watched that spire fall down. it's just -- you know, it's such an iconic part of the paris skyline. i mean, in terms of just the confusion and the sense of shock that people are feeling, it's awful to see. and the streets in front of my house right now are just choked with people. the emergency trucks seem to be having a hard time getting through. people are just sort of paralyzed and transfixed watching this beautiful, iconic building collapsing in front of them. >> witnesses on the air with us today as the world, in fact, watched. and among them, president trump was shaken by the sight of notre dame as it burned, tweeting it was horrible to watch. at an event in minnesota, calling it one of the great treasures of the world. the president also offering advice in a tweet, saying firefighters should use flying