PC World writes, From Google Maps, the U.S. National Security Agency's parking lot has a larger footprint than the building itself. And for the high secrecy surrounding what goes on inside, there is plenty of information flowing just outside. In a demonstration last week at the Breakpoint security conference, Roelof Temmingh, who founded the company Paterva in South Africa, showed how his company's application, called Maltego, can scoop up scattered online clues, quickly providing an insightful picture of individuals or organizations. What Maltego does is quickly and succinctly draws on public data sources to...