I wrote a comment on another thread today about this wrt surveillance. Reduced friction in surveillance definitely is something to be feared, as the evidence is that if the government/police/alphabet agencies can use a power (literally, not necessarily legally), they will. The only thing holding them back in the pre-digital age was the high cost of physical surveillance and even data storage, when "files" were things you held. The difference in quantity of possible surveillance has become a difference in quality, where it's just "common sense" that the government can easily pull your movements from cell tower records, and that they'll do so regardless of whether they're allowed to (or say "terrorism!" allows them to)