US military could be using powerful LASER weapons by 2020

While laser weapons have been a staple in science fiction films for decades, the US military is inching closer to making these a reality. Lockheed Martin has announced a 60 kW laser weapon that soon will be installed on an Army truck for testing against mortars and small drones. And experts believe that lasers even more powerful than this could be widely used as soon as 2020. Lockheed Martin's laser is 60-kilowatt, and invisible to the naked eye. By focusing the beam onto a target, the technology rapidly heats the inside of an incoming mortar round, causing it to explode mid-air.