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How technology is shaping social behaviour in China

Facial recognition technology - once a thing of science fiction - is being used to improve security and streamline travel experiences in a number of countries around the world. In China, however, its uses are more widespread. The Wall Street Journal's Josh Chin tells Owen Bennett Jones how China is using facial recognition technology to mould social behaviour in public spaces.

(Photo by Alfred Pasieka/Science Photo Library)

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1 minute