So...this is the 'Active Denial System'. A mobile Ray-Gun, mounted on a Humvee, that beams out microwaves to distances of half a kilometer to heat up the water molecules in the skin. Developed by the US military to deal with hostile crowds its a little too much to deploy against your domestic G8 type protesters.......However since it aparently neither kills or maims its victims, just gives them a feeling like their skin is on fire, i dont think it'll be too long before this is deployed at your local protest rally instead of the regular water cannons.