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At Ground Zero: The 9/11 anniversary

Associated Press
New York City Mayor Michael Bloomberg, right, and former Mayor David Dinkins, second from right, join family members, left, during a ceremony to honor the six people who died 20 years ago in the first terrorist attack on the World Trade Center, Tuesday, Feb. 26, 2013 in New York. The ceremony was held at the 9/11 memorial, where the twin towers were destroyed eight years later. A moment of silence was observed at 12:18 p.m., the time when a truck bomb was detonated below the north tower. (AP Photo/Mary Altaffer)

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A look at the Ground Zero memorial ceremony and events throughout the day, commemorating the 10-year anniversary of the 9/11 terrorist attacks.

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