** File ** U.S. Secretary of Education Arne Duncan speaks at a gun violence conference in Danbury, Conn., Thursday, Feb. 21, 2013. (AP Photo/Jessica Hill)

Photo by: Jessica Hill

** File ** U.S. Secretary of Education Arne Duncan speaks at a gun violence conference in Danbury, Conn., Thursday, Feb. 21, 2013. (AP Photo/Jessica Hill)