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Sept 11 Anniversary

One World Trade Center and the National September 11 Memorial are seen before a planned ceremony marking the 10th anniversary of the attacks at the World Trade Center site, Sunday, Sept. 11, 2011, in New York. A decade has passed since the Sept. 11 attacks when terrorists crashed hijacked planes into the World Trade Center and the Pentagon, and a fourth plane crashed into a field in rural western Pennsylvania. (AP Photo/Matt Rourke)

Credit: AP