World Trade Center tower two falls to the ground after a fire, early September 11, 2001. Both towers have fallen after planes crashed into the buildings. REUTERS/Jeff Christensen (Reuters)
World Trade Center tower two falls to the ground after a fire, early September 11, 2001. Both towers have fallen after planes crashed into the buildings. REUTERS/Jeff Christensen (Reuters)
A ball of fire explodes from one of the towers at the World Trade Center in New York after a plane crashed into it in this image made from television Tuesday Sept. 11, 2001. The aircraft was the second to fly into the tower Tuesday morning. Photo by ABC via APTN TV OUT NO CBC NO SALES (AP)