Michael Gray, 24th Special Operations Wing water operations instructor, inspects Johnnie Yellock’s, retired Staff Sgt. and 23rd Special Tactics Squadron combat controller, buoyancy control device during SCUBA-Pool Emergency Procedures training on Hurlburt Field, Fla. Oct. 21, 2014. The training is commonly used as a refresher to familiarize Airmen with life support equipment not used in daily activities and highlight the dangers associated with a high-risk activity like scuba diving. (U.S. Air Force photo/Senior Airman Kentavist P. Brackin)