New York City Police officers stand at the base of a white flag flying atop the west tower of New York's Brooklyn Bridge, Tuesday, July 22, 2014. Two large American flags atop the Brooklyn Bridge were replaced sometime during the night with white banners. Police crime scene and intelligence detectives were investigating how the flags were switched out on the famed span that connects Brooklyn and Manhattan, and there were no reports of suspicious activity, police said. (AP Photo/Richard Drew)
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