We are all being watched. Pretty much everything you do is being monitored, if you live in a city. An an invasion of privacy? Yes. For security reasons - a total waste of time. Shit happens in even the most monitored of places. We become oblivious to them. They are not effective in deterring crime. Windows 10 monitors just about everything. That's why it was so cheap Microsoft ARE in league with ALL countries.
The US are amateurs when it comes to spying.
Spys are not obvious. I do not fear the camera. A camera has only one eye and no judgement. The people who monitor have many eyes, and those are the people who make diverse decisions whom we should fear.