OATH OF OFFICE Chuck Hagel, left, takes the oath of office to serve as the 24th defense secretary from Michael L. Rhodes, the Defense Department's director of administration and management, as Hagel's wife, Lilibet, holds a Bible at the Pentagon, Feb. 27, 2013. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 362583-O-KKN53-825.jpg Photo Gallery