DARPA = Video search engine.
DARPA are apparently building a video search engine. The government agency that birthed the Internet is developing a sophisticated search engine for video, and when complete will allow intelligence analysts to sift through live footage from spy drones, as well as thousands of hours worth of archived recordings, in order to spot a variety of selected events or behaviors.
I think it would be awesome if the general public were given access to this also, but a scaled down version ;)