Dedication of the National September 11 Memorial Museum in New York

Former New York City Mayor Michael Bloomberg delivers remarks during the dedication ceremony at the National September 11 Memorial Museum in New York, May 15, 2014. The museum, commemorating the September 11, 2001 attacks on New York and Washington opens to the public on May 21, with wrenchingly familiar sights as well as artifacts never before seen on public display. UPI/Chris Pedota/Pool