The Raytheon Pain Gun seems like a weapon out of a science-fiction movie. The truth is that they are very real. The Pain Gun was approved by the Air Force and is going into service in Afghanistan...
The Raytheon Pain Gun fires an invisible beam of energy that creates an intolerable burning sensation in the skin. This weapon is non-lethal and its purpose is "to disperse violent crowds and repel enemies."
The discomfort causes whoever it's pointed at to immediately start moving away. They often scream but the US military says the chance of injury from the system is 0.1%. It's already been tested more than 11,000 times on around 700 volunteers. Even reporters have faced the heat-ray.
There's been much talk about the need to keep civilian casualties in Afghanistan to a minimum. The heat-ray gun could help. The beam produced by the ADS can travel more than 500m (1,640ft) and is seen as an important new way to limit unnecessary deaths and minimise war zone casualties. Research is continuing to make the system smaller, lighter and less expensive, says the Pentagon's Joint Non-Lethal Weapons Program.
....set phasers to Stun...!