@AC only the guilty....
Sorry, feeding the trolls but...
The problem, sir, is the amount of abuse and the ease of abuse the extension of surveillance systems allow.
The problem is how they make us *less* secure by encouraging laziness in the law enforcement communities... "it isn't on CCTV, let's dump the enquiry"
The problem is in the trust these systems get (very high) compared to what their reliability is (fairly poor)
Single example : ID cards. The ID card works very well as long as it is (relatively) easy to fake : people know fake cards exists, if someone fakes yours and do Bad Things with it, you can argue that it might not been you after all. But if everyone and their dog is told that ID are infalsifiable, the day someone does do something with a fake card or *pretends* you've done Bad Things and it's attested it's you "by the system" it breaks down.
To give you an extend of how all this technology doesn't work, google for facial recognition fooled by photographs, biometric hash collisions, oyster crack, dna hash collision, etc... (don't google for "etc...")
The problem is that faith in technology that is marketed as being perfect inverses the duty of proof and that we can all be flagged as guilty unless we prove we're innocent.