Master Sgt. Eric Donovan and Staff Sgt. Sara Windsor, 24th Special Operations Squadron medics, instruct Tactical Combat Casualty Care students how to perform needle decompression on a dummy Nov. 9, 2012 at Hurlburt Field, Fla. The course focused on combat scenarios that special operators are likely to face downrange. (U.S. Air Force photo by Senior Airman Melanie Holochwost)