Say Hello to the Goodbye Weapon

David Hambling Email 12.05.06
Nonlethal weaponry - Sandia researchers Willy Morse and James Pacheco fine-tune the small-sized Active Denial System.

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.

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.

Documents acquired for Wired News using the Freedom of Information Act claim that most of the radiation (83 percent) is instantly absorbed by the top layer of the skin, heating it rapidly.

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.

This may mean yet more rounds of testing for the ADS.

New bombs can be rushed into service in a matter of weeks, but the process is more complex for nonlethal weapons. It may be years before the debates are resolved and the first directed-energy nonlethal weapon is used in action.

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.

Related Topics:

Science , Culture , Politics , Discoveries , Lifestyle , Law

Advertisement
With HP wireless printers, you could have printed this from any room in the house.
Live wirelessly. Print wirelessly.

Services