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The NSA has collected 'millions' of faces from the web
The NSA isn't just interested in pure communications intelligence like call records; it wants to look for faces, too. Documents leaked by Edward Snowden reveal that the NSA has been using facial recognition software to scan the internet for portraits and match them with investigative data. The agency can determine whether or not a suspect spotted in a photo or video chat has a valid passport, for example, or find out if informants have said anything about that person. It can even spot subtle changes (like beards) and link photos to satellite info to pinpoint someone's whereabouts. As of 2011, the NSA was getting about 55,000 "facial recognition quality" images per day out of "millions" of candidates, according to the leaked material.
