From left, Supreme Court Justice Elena Kagan, Joint Chiefs Chairman Gen. Martin Dempsey and outgoing Defense Secretary Leon Panetta talk prior to President Barack Obama's State of the Union address during a joint session of Congress on Capitol Hill in Washington, Tuesday Feb. 12, 2013. (AP Photo/Charles Dharapak, Pool)

Photo by: Charles Dharapak

From left, Supreme Court Justice Elena Kagan, Joint Chiefs Chairman Gen. Martin Dempsey and outgoing Defense Secretary Leon Panetta talk prior to President Barack Obama's State of the Union address during a joint session of Congress on Capitol Hill in Washington, Tuesday Feb. 12, 2013. (AP Photo/Charles Dharapak, Pool)