Cutting-Edge Crowd Control: the New Pain-Inducing Weapon "Silent Guardian"

Looks like it would be a handy torture device too:

Silent Guardian is making waves in defence circles. Built by the U.S. firm Raytheon, it is part of its "Directed Energy Solutions" programme.

What it amounts to is a way of making people run away, very fast, without killing or even permanently harming them.

That is what the company says, anyway. The reality may turn out to be more horrific.

I tested a table-top demonstration model, but here's how it works in the field.

A square transmitter as big as a plasma TV screen is mounted on the back of a Jeep.

When turned on, it emits an invisible, focused beam of radiation - similar to the microwaves in a domestic cooker - that are tuned to a precise frequency to stimulate human nerve endings.

It can throw a wave of agony nearly half a mile.

Because the beam penetrates skin only to a depth of 1/64th of an inch, it cannot, says Raytheon, cause visible, permanent injury.

But anyone in the beam's path will feel, over their entire body, the agonising sensation I've just felt on my fingertip. The prospect doesn't bear thinking about.

This thing is totally creepy.

Interestingly, the name "Silent Guardian" is very reminiscent of the name of some of those NORAD wargames being run on 9/11-- Vigilant Guardian, Northern Guardian, Global Guardian.