Boston Police Department Commissioner, and Fellow at Harvard University, Edward Davis, left, and Watertown, Mass. Police Chief Edward Deveau, center, applaud as Watertown Police Sgt. Jeffrey Pugliese, and fellow police officers from Watertown as they stand to be acknowledged on Capitol Hill in Washington, Wednesday, April 9, 2014, during the House Homeland Security Committee hearing about the Boston Marathon Bombings leading up to the year anniversary of the attack. At right is Harvard University Professor Herman “Dutch” Leonard. (AP Photo/Jacquelyn Martin)