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Army's Smart Earplug Damps Explosive Noise, But Can Enhance Whispers

03:13
Sgt. Jessie Bacon uses the Tactical Communications and Protective System to relay information to his squad in Fort Bliss, Texas. About 20,000 of the devices have been deployed so far. (U.S. Army)
Sgt. Jessie Bacon uses the Tactical Communications and Protective System to relay information to his squad in Fort Bliss, Texas. About 20,000 of the devices have been deployed so far. (U.S. Army)

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