Goes into the pentagon. it slices in at an angle leaving a deadly and ugly gash in the nation's military center. and finally 8 am out of new york airport, united's flight 93, a 7:57 with 45 aboard, new york to san francisco, hijacked as well. the crashes short, of whatever its intended target was. comes down in pennsylvania. eyewitnesses there -- >> i heard a loud noise, and i had to look up, there was a plane there, sounded like [inaudible] and i watched it dive into the ground. >> you can see where the plane made an impact in the ground. it was still on fire. it's probably 15 feet deep, and ...