Am I right to understand that all those cams are pointed to the street / public places?

- I think you would be wrong to understand that. How on earth did you reach that conclusion?

But how is that different from the thousands of live cams over youtube or the wider internet? Or the poorly secured CCTV watching every angle of any street in most big cities.

- More than one thing can be wrong at once. Requires nuanced thought I accept.

The author then uses face search engines to find personal information on the individuals. That is the creepy part.

- I think he is demonstrating the creepy opportinities. Did he share any of that information? I think anyone with bad intent probably probably not make a video explaining what they did.

Being on the Internet makes these cameras not CCTV. The circuit should close on the property they're located.

You miss the point. This is a law enforcement tool. The average American doesn’t want a surveillance state and that’s literally what’s happening. The legal aspect of it is not in question here.

Just because something is legal doesn’t make it right. Anyone deploying or involved with this technology should be embarrassed and ashamed of themselves.