Isn't it interesting to note that (lately) people who have done horrible things, have been reported to hear voices in their head telling them to carry out terrible acts in public, which just happen to coincide with government legislation to take away the rights of citizens to protect themselves. Straight from Wikipedia: Electromagnetic hearingMain article: Microwave auditory effect Humans are able to detect modulated radio-frequency electromagnetic signals in the microwave range, hearing them as sounds. The perceived source of induced sound is located inside of or directly behind the head of the recipient, regardless of the location of the transmitter. The effect is believed to be caused by interaction of the cochlea with microwaves. During the Cold War, electromagnetic hearing was clinically studied in the United States for applications including covert message transmission and use as a non-lethal weapon. As a declassified National Ground Intelligence Center document points out: It may be useful to provide a disruptive condition to a person not aware of the technology. Not only might it be disruptive to the sense of hearing, it could be psychologically devastating if one suddenly heard "voices within one's head".