Process uses artificial intelligence to replace the usual shadowy images
                                
                                
                                    (Newser) -
                                    In documentaries, people whose identities need to be kept secret have often been reduced to shadowy, voice-distorted figures—or worse, pixelated blurs. But a documentary premiering Sunday at the Sundance Film Festival has, with the aid of advanced digital technology, gone to greater lengths to preserve the secrecy of its...