A helmet New York City Fire Department Captain Patrick John Brown wore on September 11, 2001, on display during a press preview of the National September 11 Memorial Museum on Wednesday, May. 14, 2014... more 
A helmet New York City Fire Department Captain Patrick John Brown wore on September 11, 2001, on display during a press preview of the National September 11 Memorial Museum on Wednesday, May. 14, 2014 in New York. The museum opens on May 21, 2014. (AP Photo/The Daily News, James Keivom, Pool) less 
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Associated Press | Photo By The Daily News, James Keivom, Pool
Thu, May 15, 2014 2:51 PM EDT