Lethality

A Marine resurfaces after retrieving his Kevlar helmet from the pool at Nellis Fitness Center, Nellis Air Force Base, Nev., Aug. 4. 2012. He and other Marines assigned to the Las Vegas-based 6th Motor Transport Battalion, were there to fulfill an annual swim qualification requirement. 6th MTB is a subordinate unit of 4th Marine Logistics Group, Marine Forces Reserve. (U.S. Air Force photo by Senior Airman Jack Sanders)