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.
Warner Bros. Television
U.S. Army Signal Corps
Courtesy of NOAA/Institute for Exploration/University of Rhode Island
David Shankbone/Wikimedia Commons
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