Microwave beam weapon to disperse crowds: “Tests of a controversial weapon that is designed to heat people’s skin with a microwave beam have shown that it can disperse crowds. But critics are not convinced the system is safe.” Microwave levels of the weapon, which we are assured by its developers are within federal safety guidelines, are undisclosed; the level that would ‘scare’ people is thought by some to be close to the level causing injury; and who trusts the federal guidelines anyway? New Scientist