>being able to select targets after-the-fact at little additional cost
Is it a bad thing though? Imagine that everything on all streets is recorded, and when an incident happens a cop goes to the judge and asks for a warrant to view the footage for "Pike St, between 1st and 2nd ave, between 13:00 and 13:35, on Jan 3rd 2019".
Technology changes the balance of power in different directions. The police used to be able to tap phones, but now whatsapp is pretty much out of reach, this hampers one of the venues. To keep up the police would need new methods, and it does not have to be phone intercept, maybe post-factum external surveillance would suffice.
Is it a bad thing though? Imagine that everything on all streets is recorded, and when an incident happens a cop goes to the judge and asks for a warrant to view the footage for "Pike St, between 1st and 2nd ave, between 13:00 and 13:35, on Jan 3rd 2019".
Technology changes the balance of power in different directions. The police used to be able to tap phones, but now whatsapp is pretty much out of reach, this hampers one of the venues. To keep up the police would need new methods, and it does not have to be phone intercept, maybe post-factum external surveillance would suffice.