402767 02: Work continues at Ground Zero over six months after the September 11th terrorist attacks on World Trade Center March 22, 2002 in New York City. The remains of thirteen victims, including 11 New York firefighters, were pulled from the debris March 21, 2002. (Photo by Mario Tama/Getty Images)

402767 02: Work continues at Ground Zero over six months after the September 11th terrorist attacks on World Trade Center March 22, 2002 in New York City. The remains of thirteen victims, including 11 New York firefighters, were pulled from the debris March 21, 2002. (Photo by Mario Tama/Getty Images)

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