Names of 9/11 victims ring out at World Trade Center site
Sept 11 Anniversary
Credit: AP
Robert Peraza, who lost his son Robert David Peraza in the attacks at the World Trade Center, pauses at his son's name at the North Pool of the 9/11 Memorial before the 10th anniversary ceremony at the site, Sunday Sept. 11, 2011, in New York. (AP Photo/Justin Lane, Pool)
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