But there is an expectation of being allowed to go about one's lawful affairs unmolested by state authorities lacking probable cause.
I should have been clearer in my post #5. “There is no expectation of privacy in public” applies to taking pictures or video without the subject’s permission.
Consider a person walking past a store while on a public sidewalk. The store’s video happens to record that person. Can he sue the store for invasion privacy? No.
Now consider a cop who rolls up on a fight. His body cam records not only the fighters, but innocent people standing in the background. Can the people standing in the background sue the cops for invasion of privacy? Again, no.
The problem is not the videoing. The problem is the abuse that can be done with the videos. That abuse will not be easy to stop.
That’s why I can understand why the Flock system is disliked so much.