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NEW YORK - SEPTEMBER 11: A couple pause to look at lights in Lower Manhattan near Ground Zero September 11, 2008 in New York. Today marks the seventh anniversary of the terrorist attacks in the U.S. that brought down the World Trade Center. (Photo by Chris Hondros/Getty Images)

NEW YORK - SEPTEMBER 11:  A couple pause to look at lights in Lower Manhattan near Ground Zero September 11, 2008 in New York.  Today marks the seventh anniversary of the terrorist attacks in the U.S. that brought down the  World Trade Center.  (Photo by Chris Hondros/Getty Images)