Two of the recurrent themes here on Techdirt recently are China's ever-widening surveillance of its citizens, and the rise of increasingly powerful facial recognition systems. Those two areas are brought together in a fascinating article in the Wall Street Journal that explores China's plans to roll out facial recognition systems on a massive scale. That's made a lot easier by the pre-existing centralized image database of citizens, all of whom must have a government-issued photo ID by the age of 16, together with billions more photos found on social networks, to which the Chinese government presumably has ready access.