Water gun prank 💦😂 | No One Cares

Pranking kids with the World's largest NERF Gun 😂 | Mark Rober

Raytheon’s high-energy laser weapons are changing how the U.S. fights drones and missiles — using beams of light instead of bullets. Here’s how America is bringing sci-fi air defense into the real world. | Military Mechanics

CNN got exclusive access to a US Navy live-fire test of the world’s first laser weapon http://cnn.it/2vwIpDQ | CNN International