National September 11 Museum dedication

The National September 11 Museum will display artifacts associated with the events of 9/11, while presenting stories of loss and recovery.

People try to look through the windows of the National September 11 Memorial Museum during the museum's dedication in New York on Thursday, May 15, 2014.  (AP Photo/Justin Lane, Pool)

People try to look through the windows of the National September 11 Memorial Museum during the museum's dedication in New York on Thursday, May 15, 2014. (AP Photo/Justin Lane, Pool)

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