I think you are wrong.
> There's a big difference between no privacy at all, and no privacy only in those cases requiring government investigation.
if the government gets to decide whenever it feels like if you have (or had) privacy, you have none.
this isn't a case of just vs unjust governments. there is a large extant question of a more fundamental individual right, of whether a human is allowed privacy, or whether their home is expected to be able to tell on them when the man comes & asks it.
there are huge massive reactionary negative afraid forces & fearmongers out there who will use any extremist cases they can get their hands upon to shrill-ly cry that we must do something, that we must protect some vulnerable people or defend against some predator. some are sincere. most are shallow, lying, disinformationing propoganda agents, waging a war of opinions to justify the intrusion & disruption they ulteriorly seek. some are honest at least with themselves about this deception, but others simply let themselves be blown into their extremist beliefs, let their fears take them over.
privacy is not real when it's decided upon ex post facto, at the convenience of the nation. no matter the nation.