President Obama and first lady Michelle Obama arrive for an interfaith healing service at the Cathedral of the Holy Cross in Boston, Thursday, April 18, 2013, for victims of Monday's Boston Marathon ... more 
President Obama and first lady Michelle Obama arrive for an interfaith healing service at the Cathedral of the Holy Cross in Boston, Thursday, April 18, 2013, for victims of Monday's Boston Marathon explosions. (AP Photo/Charles Krupa) less 
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Associated Press | Photo By Charles Krupa
Thu, Apr 18, 2013 1:27 PM EDT