DARPA developing defensive plasma shield

galactic_grub writes: According to this article at New Scientist, DARPA is developing a plasma shield that would allow troops to stun and disorientate enemies. The system will use a technology known as dynamic pulse detonation (DPD), which involves producing a ball of plasma with an intense laser pulse creates, and then a supersonic shockwave within the plasma using another pulse. The result is a gigantic flash and a loud bang in a the air.