my life had changed and television would change. america under attack. horrible images as terrorists strike against symbols of wealth and power. how could that happen? terrib terrible, terrible day. ♪ my city is ruined >> larry: two weeks later i found myself at ground zero. >> that was the north tower. that was the south tower. it looked like a construction sight. but there's 6,000 people. that's the horror of it. >> larry: going to the burn center at presbyterian hospital where i had had my heart surgery. what was the scene like here when you arrived? >> it was sort of -- it was like a war zone. there were just people all over the place. >> i heard a wrrrr. and it started to fall on us. all of it started to fall on it. sparks. we were all on fire.