A model of the short-range radio frequency stopper under development to stop vehicle attacks, developed by JNLWD, in March. Patrick Tucker/Defense One Stay ConnectedFeatured eBooks Tech The Pentagon Is Making a Ray Gun to Stop Truck Attacks A device that resembles an old phonograph may soon be used to jam and shut down vehicles like the one that killed 10 people in Toronto. Patrick Tucker | April 25, 2018 Patrick Tucker Science & Technology Editor, Defense One Share This: NEXT STORY: Experts Say AI Could Raise the Risks of Nuclear War