Well. That's actually a good example. Because contact tracing can (and was) implemented in a completely anonymous way, at a technical level, storing no personal

Well. That's actually a good example. Because contact tracing can (and was) implemented in a completely anonymous way, at a technical level, storing no personally identifiable information. You can do this, just like you can do e.g. video surveillance, in a secure and privacy-respecting way. There is just no political will.