Today's ships are equipped with radar systems that let them identify other ships from a distance, and while that works well enough for collision avoidance, those systems aren't the greatest at detecting small watercraft ... such as the low-slung skiffs often used by pirates. That's where WatchStander comes in. It's a radar system that's designed to pick out such boats, and then deter their crews before they can attack.
As part of the U.S. Navy's investigation into futuristic nonlethal weaponry, the Sierra Nevada Corporation is building a microwave energy pulse gun that can produce a painful screaming sound inside a person's head from a long distance away. The inescapable sound, which is inaudible to untargeted bystanders, can be set to irritate, nauseate or even incapacitate people and animals that lie within range. Future applications may include crowd control, military use and even shopping mall security, provided it proves safe from permanent side effects. The science behind it also has the potential to give hearing to certain deaf people, or even projecting voices into peoples' heads.