The Active Denial System (ADS) is a non-lethal, directed-energy weapon developed by the U.S. military. It is a strong millimeter-wave transmitter primarily used for crowd control (the "goodbye effect"). Some ADS systems such as HPEM ADS are also used to disable vehicles.[3] Informally, the weapon is also called pain ray. Raytheon is currently marketing a reduced-range version of this technology. The ADS is currently being considered for deployment in the Iraq War.
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