I know this subject might have been talked about before so why not talk about it again?
After watching The Myth Busters challenge I’m not at all too convinced. I heard that the Japanese was doing this to subject humans inside with lots of loudspeakers so someone told me a few years ago.
http://en.wikipedia.org/wiki/Brown_note
http://en.wikipedia.org/wiki/Infrasound
http://en.wikipedia.org/wiki/Low_frequency
http://en.wikipedia.org/wiki/Extremely_low_frequency
http://en.wikipedia.org/wiki/Sound_from_ultrasound
Other sound weapons videos
http://en.wikipedia.org/wiki/Long_Range_Acoustic_Device
http://en.wikipedia.org/wiki/Vibration_white_finger