- Top U.S. Air Force engineer plans to demonstrate fighter jet laser weapons by 2020
- Shields up: U.S. also developing a 360-degree laser defense shield
- Top special ops general wants laser weapons on C-130 gunships in five years
(CNN)The invention of guns took warfare to a whole new level. Later, airplanes radically changed it again. Now, experts say another big shift is coming, led by energy weapons, including lasers.