The remaining tower of New York’s World Trade Center disolves in a cloud of dust and debris soon after the towers were hit by hijacked airliners, September 11, 2001. The pictures were made from across the Hudson River in Jersey City, New Jersey. The kamikaze airplane attacks that destroyed New York’s World Trade Center and damaged the Pentagon on Tuesday were unprecedented in the history of civil aviation, security experts said. REUTERS/Ray Stubblebine /Landov