Biometrics: Putting a digital uniform on the enemy
Maj. Lee Barnes, a U.S. Army Reserve operations officer from the 200th Military Police Command (Headquarters Company), carries a MK19 automatic grenade launcher at Fort Indiantown Gap, Pennsylvania, Aug. 2, 2017, during an annual training scheduled to exercise the command headquarter's staff to mobilize, qualify on crew-serve weapons and run an tactical operations center in a field environment from July 29 to Aug 4. (U.S. Army Reserve photo by Master Sgt. Michel Sauret)