Need To Know News 19-09-25 Original post Cached copy Chinese Scientists Have Developed a Handheld Sonic Weapon for Crowd Control Need To Know News - 2019-09-25 - Original post - Cached copy The device’s “biological effect” would cause extreme discomfort and earlier tests reported that low frequency sound can cause dizziness, headaches, vomiting, bowel spasms, involuntary defecation, organ damage and heart attacks.
