Col. Barry Cornish, 99th Air Base Wing commander, surprises Staff Sgt. Tanner Grutz, 99th Security Forces Squadron, by promoting him to the rank of technical sergeant using the Stripes for Exceptional Performers program Dec. 14, 2012, at Nellis Air Force Base, Nev. The STEP program is a tool which allows commanders to immediately promote enlisted Airmen who exhibit exceptional potential. (courtesy photo)
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