PLANES SLAM TOWERS...
8:45 a.m. American Airlines Flight 11, a Boeing 767 hijacked en route from Boston to Los Angeles with 92 passengers aboard, slams into the north tower
9:06 a.m. United Airlines Flight 175, also a Boeing 767 hijacked en route from Boston to Los Angeles with 65 passengers aboard, banks hard and slices through the south tower
...AND WEAKENED BUILDINGS COLLAPSE
10:00 a.m. The sudden collapse of the south tower traps hundreds of rescuers below, in addition to perhaps thousands of workers in the building. Debris guts the 4 World Trade Center building below
10:29 a.m. Weakened by its...