NEW YORK, NY – MAY 05: U.S. President Barack Obama (R) shakes hands with an New York Police Department officer with police and firefighters looking on at a wreath laying ceremony at Ground Zero after Osama bin Laden was killed on May 5, 2011 in New York City. Obama also visited a New York Fire Department firehouse and met with families of victims of the terrorist attack on September 11, 2001during his visit to New York. (Photo by Mario Tama/Getty Images)