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Non-Lethal Weapon Emits Invisible Rays of Pain The Pentagon's research arm has come up with a weapon that can neutralize an individual — or a crowd — from a distance of more than 500 yards. It emits an invisible beam of high-energy radio frequency that causes a person to recoil and flee.

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Non-Lethal Weapon Emits Invisible Rays of Pain

Heard on All Things Considered

Non-Lethal Weapon Emits Invisible Rays of Pain

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The Pentagon's research arm has come up with a weapon that can neutralize an individual — or a crowd — from a distance of more than 500 yards.

It's not intended to kill. It emits an invisible beam of high-energy radio frequency that causes a person to recoil and flee. The weapon has been 12 years in the making, and now it's ready.

NPR's defense correspondent gets zapped by the Active Denial System.