AU-23 "Peacemaker" Picture I https://pimeakronikka.blogspot.com/p/what-means-noise-attack-and-why-we.html Kimmo Huosionmaa There have been cases, that some workers of the U.S embassies have been under some kind of voice attack, and this might very interesting because those noise attacks can be made for given the infrasound commands to that personnel. The purpose might be sometimes been, that the opponent is trying to give orders to deliver secretive information to its authorities. The Infrasound is in the normal situations thing, what we cannot hear, but it would be used to deny to put things in the memory. Also sometimes infrasound would be used to disturb the sharp work. But when we are thinking about propaganda purposes, this thing would be excellent for given information to the opponent. In the Vietnam War, the United States military used that thing for making their opponent too relaxed and careless, and this system was used in the jungles by AU-23 "P...