LANGLEY AIR FORCE BASE, Va. -- Tech. Sgt. Thomas Grubbs, 1st Security Forces Squadron Alpha flight chief, indentifies an item at the memory test station during the Strong Man Competition obstacle course, here May 15. 1st SFS Airmen and civilians divided into 4-man teams to complete the obstacle course designed to build physical endurance and unit cohesion during National Police Week. (U.S. Air Force photo/Senior Airman Vernon Young)