> Fast forward to the present where law enforcement in Germany, Australia and Singapore have used contact-tracing for other purposes.
I don't understand how people were so naive to install those applications. I did the exact opposite: whipped my phone and bought two cheap ones so I can separate my calling phone (which I leave home), from my media phone (no connections), and my GPS phone (no connections aside from GPS and turned off most of the time).
However it's what comes after this, the slippery slope of what to enforce and not. The genie doesn't go back in the bottle.