For most, we probably do not realize just how pervasive fiber optics is in much of what we do--an that inlcudes national defense too. The new F-35A Lightning II's development is underpinned with the very technology though. It's Electro-Optical Targeting System (EOTS) provides precision air-to-air scan and track, as well as a solid air-to-surface targeting capability. EOTS retains the aircraft’s stealth and is linked to the jet’s integrated central computer through a high-speed fiber-optic interface. Without that interface, the fighter jet isn't, well, much of a fighter jet at all. To read more about the project check it out here.