Pilot chases Olympic dreams
Capt. Daniel Castle, 349th Air Refueling Squadron pilot, poses for a photo at the half-mile track, Aug. 14, 2015, at McConnell Air Force Base, Kan. Castle is passionate about running for the love of competition, reducing stress and pushing himself to do the best in everything he does. (U.S. Air Force photo by Airman 1st Class Christopher Thornbury)