U.S. Air Force Col. Steven S. Norris, 182nd Medical Group commander, stands at the South Pole during his deployment to McMurdo Station, Antarctica, Nov. 21, 2013. The doctor deployed as a flight surgeon in support of Operation Deep Freeze’s mission to provide airlift for the National Science Foundation. There, the Iraq and Afghanistan War veteran with almost two decades of military service experienced the most limited and remote working conditions of his career. (Courtesy photo from Col. Steven Norris/Released)