America pauses to mark the 12th anniversary of the 9/11 terrorist attacks.
America paused on Sept. 11, 2013, to mark the 12th anniversary of the 9/11 terrorist attacks. Here, President Barack Obama stands during a moment of silence at the White House with first lady Michelle Obama, Vice President Joe Biden and his wife, Jill Biden.
Enrique Castro-Mendivil / Reuters
U.S. National Archives
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U.S. Air Force
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