Have a look at this article that would suggest that times might be getting harder for those who wish to protest....
The crowd is getting ugly. Soldiers roll up in a Hummer. Suddenly, the whole right half of your body is screaming in agony. You feel like you've been dipped in molten lava. You almost faint from shock and pain, but instead you stumble backwards -- and then start running. To your surprise, everyone else is running too. In a few seconds, the street is completely empty.
You've just been hit with a new nonlethal weapon that has been certified for use in Iraq -- even though critics argue there may be unforeseen effects.
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The ADS shoots a beam of millimeters waves, which are longer in wavelength than x-rays but shorter than microwaves -- 94 GHz (= 3 mm wavelength) compared to 2.45 GHz (= 12 cm wavelength) in a standard microwave oven.
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The development of a truly safe and highly effective nonlethal crowd-control system could raise enormous ethical questions about the state's use of coercive force. If a method such as ADS leads to no lasting injury or harm, authorities may find easier justifications for employing them
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The ADS technology is ready to deploy, and the Army requested ADS-armed Strykers for Iraq last year. But the military is well aware that any adverse publicity could finish the program, and it does not want to risk distressed victims wailing about evil new weapons on CNN.
This may mean yet more rounds of testing for the ADS.
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System 1, the operational prototype, is mounted on a Hummer and produces a beam with a 2-meter diameter. Effective range is at least 500 meters, which is further than rubber bullets, tear gas or water cannons. The ammunition supply is effectively unlimited.
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Key technologies to enable this capability from an airborne platform -- such as a C-130 -- are being developed