A Coke truck sits among the rubble after the collapse of the first World Trade Center Tower September 11, 2001 in New York. Two hijacked planes crashed into the twin towers causing the collapse of both. AFP PHOTO Doug KANTER (Photo credit should read DOUG KANTER/AFP/Getty Images)

A New York City fire-fighter attempts to clear his eyes of soot during rescue efforts at the World Trade Center. The building was destroyed during a Sep. 11, 2001, terrorist attack.

New York, NY, September 29, 2001 -- Rescue workers take a minute to look over the clean up work at the World Trade Centre.

New York, NY, September 19, 2001: Firefighters work together to extinguish the ongoing fire in the rubble of the collapsed World Trade Center in downtown Manhattan.

Retired Fire Chief Joseph Curry barks orders to rescue teams as they clear through debris that was once the World Trade Center.

Hijacked United Airlines Flight 175 from Boston crashes into the south tower of the World Trade Center and explodes at 9:03 a.m. on September 11, 2001 in New York City. The crash of two airliners hijacked by terrorists loyal to al Qaeda leader Osama bin Laden and subsequent collapse of the twin towers killed some 2,800 people. (Photo by Spencer Platt/Getty Images)

This 11 September 2001 file photo from an early morning school reading event Sarasota, Florida, shows White house Chief of Staff Andrew Card (L) informing former US President George W. Bush (R) of the attacks on the World Trade Center in New York. A bipartisan US commission pins the blame for the 11 September 2001 terror attacks on a broad array of lapses by federal and local law enforcement officials and intelligence agencies, in its final report to be released 22 July 2004. AFP PHOTO/FILES/Paul J. RICHARDS (Photo credit should read PAUL J. RICHARDS/AFP/Getty Images)

New York, NY, September 15, 2001: The sun streams through the dust over the wreckage of the World Trade Center