HELLO, YOU MUST BE GOING:

Ray gun brings some zap to the battlefield (Matt Weaver, January 25, 2007, Guardian Unlimited)

The American military has unveiled its latest hi-tech weapon - a virtual flame-thrower on top of a Humvee that microwaves enemies at 500 paces. [...]

The futuristic new weapon, called the Active Denial System, was tested yesterday on 10 journalists who volunteered to be fired at. [...]

The system uses tiny waves, which only penetrates 0.4mm of the skin, just enough to cause discomfort. By comparison, common kitchen microwaves penetrate several centimetres of skin. The system was developed by the military, but the two devices currently being evaluated were built by defence contractor Raytheon.

Airman Blaine Pernell, said he could have used the system during his four tours in Iraq, where he manned watchtowers around a base near Kirkuk.

"All we could do is watch them," he said. But if they had the ray gun, troops "could have dispersed them".

The beam produces what experimenters call the "Goodbye effect," or "prompt and highly motivated escape behavior." In human tests, most subjects reached their pain threshold within 3 seconds, and none of the subjects could endure more than 5 seconds.

"It will repel you," one test subject said. "If hit by the beam, you will move out of it -- reflexively and quickly. You for sure will not be eager to experience it again."

But while subjects may feel like they have sustained serious burns, the documents claim effects are not long-lasting. At most, "some volunteers who tolerate the heat may experience prolonged redness or even small blisters," the Air Force experiments concluded.

The reports describe an elaborate series of investigations involving human subjects.

The volunteers were military personnel: active, reserve or retired, who volunteered for the tests. They were unpaid, but the subjects would "benefit from direct knowledge that an effective nonlethal weapon system could soon be in the inventory," said one report. The tests ranged from simple exposure in the laboratory to elaborate war games involving hundreds of participants.

The military simulated crowd control situations, rescuing helicopter crews in a Black Hawk Down setting and urban assaults. More unusual tests involved alcohol, attack dogs and maze-like obstacle courses.

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.

The ADS was developed in complete secrecy for 10 years at a cost of $40 million. Its existence was revealed in 2001 by news reports, but most details of ADS human testing remain classified. There has been no independent checking of the military's claims.

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.