>> i didn't think it at the time. >> i know bob didn't. he was there suffering on behalf of the people that he had served with and he was worried and concerned about finding his pals. i was concerned about telling us those firefighters and policemen and rescue workers how much the country supported them. they were concerned about whether or not as president i had what it took to get after that enemy. it was an amazing experience there on september 14th in what i described as like walking into hell. >> sean: that was an unscripted moment. you didn't have a teleprompter? i don't mean to make -- i don't mean to make light. that just came to you, at that moment? >> yeah, it does. >> sean: i'm looking in your eyes. >> touching moment, hard to watch this footage because it reminds you of the emotions and the heartbreak that took