People attend the Dedication Ceremony of the National September 11 Memorial Museum in the museum's Foundation Hall on Thursday, May 15, 2014 in New York. (AP Photo/Newsday, Charles Eckert, Pool)
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People attend the Dedication Ceremony of the National September 11 Memorial Museum in the museum's Foundation Hall on Thursday, May 15, 2014 in New York. (AP Photo/Newsday, Charles Eckert, Pool)
