Increased Security In NYC Continues One Day After Explosions Occurred During Boston Marathon

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Policemen stand guard outside of Penn Station on April 16, 2013 in... News PhotoAccidents and Disasters,Conflict,Crime,Full Length,Guarding,Horizontal,Justice - Concept,Law,New York City,New York City Penn Station,Police Force,Terrorism,USAPhotographer Collection: Getty Images News 2013 Getty ImagesNEW YORK, NY - APRIL 16: Policemen stand guard outside of Penn Station on April 16, 2013 in New York City. Police were out in force throughout New York, a day after explosions near the finish line of the Boston Marathon killed 3 people and wounded more than 170 others. (Photo by John Moore/Getty Images)