Article Photos: Republicans hammer defense nominee Chuck Hagel 6/12

Republican Chuck Hagel, a former two-term senator and President Obama's choice to lead the Pentagon, arrives at the Senate Armed Services Committee for his confirmation hearing, on Capitol Hill in Washington, Thursday, Jan. 31, 2013. Former committee chairman, Democrat Sam Nunn, left, introduced Hagel. If confirmed, Hagel, a decorated Vietnam combat veteran, would be the first enlisted man to serve as defense secretary. (AP Photo/J. Scott Applewhite)