https://www.nature.com/articles/d41586-019-03687-x Corporations selling DNA-profiling technology are aiding human-rights abuses. Across the world, DNA databases ... used for state-level surveillance are steadily growing. The most striking case is in China. Here police are using a national DNA database along with other kinds of surveillance data, such as from video cameras and facial scanners, to monitor the minority Muslim Uyghur population in the western province of Xinjiang. Concerns about the potential downsides of governments being able to interrogate people’s DNA have been voiced since the early 2000s1 by activist groups, such as the non-profit organization GeneWatch UK, and some geneticists. Now the stakes are higher for two reasons. First, as technology gets cheaper, many countries ... want to build massive DNA databases. Second, DNA-profiling technology can be used in conjunction with other tools for biometric identification — and alongside the analysis of many other types of personal data, including an individual’s posting behaviour on social networks. Last year, the Chinese firm Forensic Genomics International (FGI) announced that it was storing the DNA profiles of more than 100,000 people from across China (FGI, known as Shenzhen Huada Forensic Technology in China, is a subsidiary of the BGI, the world’s largest genome-research organization). It made the information available to the individuals through WeChat, China’s equivalent of WhatsApp, using an app accessed by facial recognition.