Wired does mention that there is always the possibility of mis-use of this or any other any type of weapon which will then cause permanent injury. A short blurb from the article:
"According to documents obtained for Wired News under federal sunshine laws, the Air Force's Active Denial System, or ADS, has been certified safe after lengthy tests by military scientists in the lab and in war games. 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. The longer waves are thought to limit the effects of the radiation. If used properly, ADS will produce no lasting adverse affects, the military argues. In more than 10,000 exposures, there were six cases of blistering and one instance of second-degree burns in a laboratory accident, the documents claim."
Isn't that friggin grand? Better science with our tax dollars. The estimated amount of cash spent on this baby: $40 million. Of course with all the hidden budgets all over hells half acre, how do we know that is all of it?