alt Hacker NewsOne thing this surfaces nicely is how scale changes the privacy model. Individually these look like “mere observation,” but once you can reconstruct routine movement patterns across counties, the data starts behaving more like long-term tracking than casual surveillance.
Retention is one good line between enforcement and tracking.
If we wanted to solve this problem while retaining the benefits, what we'd do is have stiff penalties for warrantless retention and required yearly independent audits of systems.