Airman 1st Class Jacob Lanzer, 319th Civil Engineer Squadron electrical systems apprentice, tests the voltage on an outlet using a multimeter on Grand Forks Air Force Base, N.D., April 23, 2015. Lanzer was selected as the base’s Warrior of the Week for the fourth week in April. (U.S. Air Force photo by Airman 1st Class Bonnie Grantham/Released)
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