WASHINGTON DC – SEPT 11: U.S. President Barack Obama and First Lady Michelle Obama on the South Lawn of the White House bowing their heads in a moment of silence to honor the nearly 3000 lives that were lost during the 9/11 terrorist attacks that brought the Twin Towers down within an hour and 42 minutes in New York on September 11, 2001. Photo was taken by Saul Loeb from AFP/Getty Images.
