At Ground Zero: The 9/11 anniversary

Associated Press
Flowers are placed near the names of the six people who were killed 20 years ago in the first terrorist attack on the World Trade Center in New York, before the start of a ceremony to remember them Tuesday, Feb. 26, 2013. About 50 people attended the ceremony, held at the 9/11 memorial, where the twin towers were destroyed eight years later. (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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