on the lower threshold of use which may lead those who use them to become "trigger-happy", especially in dealing with peaceful protesters. Others have focused on concerns that weapons whose operative principle is that of inflicting pain (though "non-lethal") might be useful for such purposes as torture, as they leave no evidence of use, but undoubtedly have the capacity to inflict horrific pain on a restrained subject. According to Wired, the ADS has been rejected for fielding in Iraq due to Pentagon fears that it would be regarded as an instrument of torture. Silent Guardian Defense contractor Raytheon has developed a smaller version of the ADS, the Silent Guardian. This stripped-down model is primarily marketed for use by law enforcement agencies, the military and other security providers. The system is operated and aimed with a joystick and aiming screen. The device can be used for targets over away, and the beam has a power of 30 kilowatts. The Los Angeles County Jail installed the smaller-sized unit, under the name Assault Intervention Device, on the ceiling of the Pitchess Detention Center in 2014. See also Area denial weapons, to prevent an adversary from occupying or traversing an area Heat Ray Long-range acoustic device Radiation References American inventions Directed-energy weapon of the United States Energy weapons Non-lethal weapons Riot control weapons United States Marine Corps projects Military equipment introduced in the 2000s