Cable dogs take on freezing temperatures during training
Airman 1st Class Aaron Thompson, 460th Space Communications Squadron cable antenna systems technician, climbs into a manhole for confined-spaces training Nov. 21, 2013, near the 460th SCS building on Buckley Air Force Base, Colo. Regardless of the weather, cable antenna systems technicians are required to complete confined-spaces training as part of on-the-job training. (U.S. Air Force photo by Senior Airman Riley Johnson/Released)