Video: Navy's New Laser Weapon Shoots Down Drones

Unmanned aerial vehicles beware: We've got laser weapons. This week defense contractor Raytheon debuted video of a test conducted with the U.S. Navy in California this May, in which the company's laser weapon shot down four UAVs. The shaky black-and-white footage shows lasers locked on an aircraft until it loses control and plunges into the sea. The Navy's laser depends upon a guidance system it already uses on its ships—Raytheon's Phalanx Close-In Weapon System, which normally uses radar to guide a 20mm Gatling gun.