|U.S. Air Force Senior Airman Kristi Terwilliger, back, and Staff Sgt. Benjamin Pieta take aim in the prone position during an operational readiness exercise on Ellsworth Air Force Base, S.D., May 12, 2010.|
Pieta and Terwilliger are patrolmen assigned to the 28th Security Forces Squadron.
U.S. Air Force photo by Airman 1st Class Anthony Sanchelli