I agree that disclosing all my bank transactions would be active surveillance and would violate privacy (even more so in countries like the US where cash is pha

I agree that disclosing all my bank transactions would be active surveillance and would violate privacy (even more so in countries like the US where cash is phasing out of use). But to my knowledge that's not what actually happens in western countries. Data reported to government agencies seems to always be limited to aggregates or data that acts like an aggregate (the amount of interest earned). I have a hard time seeing a privacy violation in that, since you provide a much more detailed version of that data to the government in your tax report. On top of that there's of course also the transactions that are reported to the government because they look like money laundering. That's more questionable, but I think it's still reasonable.