Boston Police Commissioner Edward Davis, center, listens to opening statements during the House Homeland Security Committee hearing on "The Boston Bombings: A First Look," on Capitol Hill in ... more 
Boston Police Commissioner Edward Davis, center, listens to opening statements during the House Homeland Security Committee hearing on "The Boston Bombings: A First Look," on Capitol Hill in Washington, Thursday, May 9, 2013. Former Sen. Joseph Lieberman, I-Conn., is at left and Massachusetts Undersecretary for Homeland Security Director Kurt Schwartz, sits at right. (AP Photo/Susan Walsh) less 
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Associated Press | Photo By Susan Walsh
Thu, May 9, 2013 11:06 AM EDT