Say Hello to the Goodbye Weapon

David Hambling Email 12.05.06

Historically, one of the big problems with nonlethal weapons is that they can be misused. Rubber bullets are generally safe when fired at the torso, but head impacts can be dangerous, particularly at close range. Tasers can become dangerous if they are used on subjects who have previously been doused with flammable pepper spray. In the heat of the moment, soldiers or police can forget their safety training.

Steve Wright of Praxis, the Center for the Study of Information and Technology in Peace, Conflict Resolution and Human Rights, notes that there are occasions when this has happened in the past. He cites British soldiers, who increased the weight of baton rounds in Northern Ireland.

"Soldiers flouted the rules of engagement, doctoring the bullets by inserting batteries (to increase the weight) and firing at closer ranges than allowed," says Wright.

There may also be technical issues. Wright cites a recent report on CS gas sprays which turned out to be more dangerous in the field than expected.

"No one had bothered to check how the sprays actually performed in practice, and they yielded much more irritant than was calculated in the weapon specification. This underlines the need for independent checking of any manufacturers' specifications. Here secrecy is the enemy of safety."



The risk of cancer is also often mentioned in connection with the ADS system, despite the shallow penetration of radiation into the skin.

But the Air Force is adamant that after years of study, exposure to MMW has not been demonstrated to promote cancer. During some tests, subjects were exposed to 20 times the permitted dose under the relevant Air Force radiation standard. The Air Force claims the exposure was justified by demonstrating the safety of the ADS system.

The beam penetrates clothing, but not stone or metal. Blocking it is harder than you might think. Wearing a tinfoil shirt is not enough -- you would have to be wrapped like a turkey to be completely protected. The experimenters found that even a small exposed area was enough to produce the Goodbye effect, so any gaps would negate protection. Holding up a sheet of metal won't work either, unless it covers your whole body and you can keep the tips of your fingers out of sight.

Wet clothing might sound like a good defense, but tests showed that contact with damp cloth actually intensified the effects of the beam.

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.

The military's tests went beyond safety, exploring how well the ADS works in practice. In one war game, an assault team staged a mock raid on a building. The ADS was used to remove civilians from the battlefield, separating what the military calls "tourists from terrorists."

It was also used in a Black Hawk Down scenario, and maritime tests, which saw the ADS deployed against small boats.

It might also be used on the battlefield. One war game deployed the ADS in support of an assault, suppressing incoming fire and obstructing a counterattack.

"ADS has the same compelling nonlethal effect on all targets, regardless of size, age and gender," says Capt. Jay Delarosa, spokesman for the Joint Non-Lethal Weapons Directorate, which decides where and how the ADS might be deployed.

"It can be used to deny an area to individuals or groups, to control access, to prevent an individual or individuals from carrying out an undesirable activity, and to delay or disrupt adversary activity."

The precise results of the military's war games are classified, but Capt. Delarosa insists that the ADS has proven "both safe and effective in all these roles."

The ADS comes in a variety of shapes and sizes. As well as System 1, a smaller version has been fitted to a Stryker armored vehicle -- along with other lethal and nonlethal weapons -- for urban security operations. Sandia National Labs is looking at a small tripod-mounted version for defending nuclear installations, and there is even a portable ADS. And there are bigger versions too.

"Key technologies to enable this capability from an airborne platform -- such as a C-130 -- are being developed at several Air Force Research Laboratory technology directorates," says Diana Loree, program manager for the Airborne ADS.

The airborne ADS would supplement the formidable firepower of Special Forces AC-130 gunships, which currently includes a 105-mm howitzer and 25-mm Gatling guns. The flying gunboats typically engage targets at a range of two miles or more, which implies an ADS far more powerful than System 1 has been developed. But details of the exact power levels, range and diameter of the beam are classified.

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