FILE - In this Aug. 31, 2018, file photo, policemen patrol past a building's wall mounted with surveillance cameras in Peyzawat, western China's Xinjiang region. The Chinese database Victor Gevers found online was not just a collection of old personal details. The discovery by Gevers, a Dutch cybersecurity researcher who revealed it on Twitter last week, has given a rare glimpse into China’s extensive surveillance of Xinjiang, a remote region home to an ethnic minority population that is largely Muslim. The area has been blanketed with police checkpoints and security cameras that apparently are doing more than just recording what happens. The database Gevers found appears to have been recording people’s movements tracked by facial recognition technology, he said, logging more than 6.7 million coordinates in a span of 24 hours. (AP Photo/Ng Han Guan, File)

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