Its real issue is not about the technology, its about its misuse and the fact that we don't have enforcement of the privacy we expect.

Tracking a citizens location, and face or collecting his personal data or profile information without express consent with option to OPT OUT should be unconstitutional unless there is a 1. a warrant 2. a right to jury trial and appeal.

Mass surveillance, unlawful indiscriminate data collection, and no way to appeal/defend ones-self is the problem, NOT the tech, which as stated could have many beneficial uses as tools, if used appropriately.