A Navy diving instructor (left) stands ready to offer a diving student air if he is not able to regain his own air supply during a problem solving exercise at the Naval Diving and Salvage Training Center in Panama City, Fla., on Feb. 9, 2005. The carefully supervised exercise is designed to train students to remain calm during a loss of air situation while following carefully supervised procedures to regain their air supply without going to the surface.

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Keywords: archive, armed, defence, forces, military, reportage, servicemen, usa