Yeah, and they take all the camera data from CCTV and all the mobile phone data, as well as the contact tracing data (with QR codes to a central system) and use

Yeah, and they take all the camera data from CCTV and all the mobile phone data, as well as the contact tracing data (with QR codes to a central system) and use that for contact tracing. They are trading off liberty for security, and it seems to be working out well for them. I can only imagine how crazy the US would have gone if the government had tried to do any of this.