WORLD TRADE CENTER ATTACK Smoke and fire surround the upper floors of the World Trade Center in New York City, Tuesday, Sept. 11, 2001, in this image from television, after a second plane crashed into the building. Planes crashed into the upper floors of both World Trade Center towers minutes apart Tuesday in a horrific scene of explosions and fires that left gaping holes in the 110-story buildings. (AP Photo/NBC) NEXT PHOTO »