This is naive in the extreme. Surely you can't believe that such a useful technology and data set would "only be used for contact tracing of COVID19". The dat

This is naive in the extreme. Surely you can't believe that such a useful technology and data set would "only be used for contact tracing of COVID19". The data would only be used to "track a threat". What you consider a threat differs considerably from what others consider a threat... but the data collected is the same. The data is sent over the internet. All internet traffic is recorded somewhere. Search for the discussion of "thin thread" and the abuse surrounding it. Be careful what you wish for.