https://enchantedlifepath.com/war-on-humanity/silent-weapons-for-quiet-wars
Yet it makes an unmistakable “noise,” causes unmistakable physical and mental damage, and unmistakably interferes with the daily social life, i.e., unmistakable to a trained observer, one who knows what to look for. The public cannot comprehend this weapon, and therefore cannot believe that they are being attacked and subdued by a weapon.