Not sure I agree with that analogy... pen and paper doesn't scale!
Having the ability to do something at global scale, like facial recognition or real-time tracking and saying "Honest! We won't use it for dodgy things" is not sufficient...
It'd be naieve to say I'd rather it didn't exist, however that cat is out of the bag now so there _must_ be incredibly robust and tamper-proof checks and balances round its use and the penalties for subverting that should be incredibly severe.
