Ann Morse, Virginia Beach Marine Rescue Team diver and medical safety officer, participates in a neurological evaluation with Stephen Ryan, Federal Tech Hazards Rescue Unit diver, inside a hyperbaric chamber during a training course at Fort Eustis, May 2, 2013. The training taught divers and medical personnel from local and federal search and rescue dive teams basic dive first aid, also called "tender maneuvers." (U.S. Air Force photo by Staff Sgt. Wesley Farnsworth/Released)