BUNKER ESCORT Defense Secretary Chuck Hagel, right, receives an escort into a bunker by a member of the 898th Munitions Squadron as he tours a munitions storage facility at Sandia National Laboratories in Albuquerque, N.M., Jan. 8, 2014. The squadron is based on Kirtland Air Force Base in Albuquerque. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 787203-L-QJG25-060.jpg Photo Gallery