bomb went off. what was your reaction, you are a vietnam veteran, you have been in war zones. >> i just immediately thought it was a terrorist attack. i kind of lost my balance on the step, and my immediate thought was my daughter was heading down to -- to meet us down there, and i just quickly grabbed the phone to call her. and then there was such confusion that i -- i actually jumped over the fence, and i saw carlos, and he kind of blessed himself and pointed across the street, we both ran over there. and i was starting to rip the fence down, and carlos didn't wait for the fence, he scaled over the fence and over the scaffolding, and started to attend to some of the victims. i knew i didn't have any first aid training, so there was -- it was only -- i was trying to remove the fence and didn't know