People with QR codes coloured in red are not allowed to enter public venues such as subway stations, restaurants or shopping malls for at least 14 days. Photo: Handout

How big data is dividing the public in China’s coronavirus fight – green, yellow, red

  • Cutting-edge technologies and old-fashioned surveillance are being used to decide who can and who can’t go back to work
  • But the smart technology is not always that intelligent
Topic |   Coronavirus outbreak

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People with QR codes coloured in red are not allowed to enter public venues such as subway stations, restaurants or shopping malls for at least 14 days. Photo: Handout
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