we must not forget the sights and the sounds from what started as a beautiful glorius tuesday morning in september, 2001. >> he we have hijackers onboard making demands. >> say it again. >> did you understand that transmission? >> it was unreasonable. it sounded like someone had a problem or something. >> affirmative. he said there was a bomb onboard. >> the man we spoke with, we didn't get it clear. >> is that aircraft turning to the east now? >> he just turned to the east. >> we are looking for a visual. stand by. >> do you have a visual now? >> we lost them on the turn. >> 9:56. we just lost the target on that aircraft. >> 8:52. something wierd is going on. the world trade center is on fire. >> oh, my goodness! >> we're trying to get information. >> unfolding from new york city, a plane crash. >> i hope she's ok! >> oh, my god! it is complete pandemonium. >> it was raining papers and ashes. >> it is like an earthquake or something! oh, my god, it was a huge explosion. >> people are jumping out of the windows! they're jumping out of the windows!a plane has flown into a third locatio