Sneaky US Navy feedback device could stop people being able to speak
By David Hambling A sailor in the US Navy uses a long-range acoustic device during a drill David Wa / Alamy A non-lethal device developed by the US Navy aims to surreptitiously render a person unable to speak. The device, called a handheld acoustic hailing and disruption (AHAD) system, records a target’s speech with a … Read more