What could possibly make robots any cooler? How about making them work as spies designed to root out pirates in Africa. Add a few different kinds of ammo (and maybe napalm after level 10) and it sounds like the beginning of something you could download for your PS3. But these spy drones are very real and you may seem then over the ocean sooner than you think.
The actual drones, which will not be equipped with weapons for now, are called Fire Scouts and they are being put into commission by the US Navy to help find pirate ships and cocaine smugglers.
So how will it work? With lasers! The laser will be sent down towards the water in pulses. Each of these pulses will either be absorbed by the ocean or bounce off of metal objects in the area. When they bounce off the electronic eye of the drone will know that there is something there. The combination of the laser information (called LADAR) will create a 3-D map of the area below the drone.