These cameras are NOT like the security cameras owned by private individuals or companies trying to cut down on crime at their residence or business. These are companies whose ONLY goal is to collect as much data on you as possible, and make profits from it, by being paid with your money, by your government, which takes your money, and to sell your data.
The so called "trusted individual" doesn't work, either, there have already been several caught who were compromised in one way or another, and violated the rules.
The government, which takes your money, which spends or gives that money away contrary to your best interest, which lies to you, and abuses the various systems, is literally paying companies, with your tax dollars, to collect date about you, which they give to the government without a warrant, or any other restriction, and which they also sell.
Oh, these cameras have been placed near places like firearm ranges as well. Think about it. The government, which is/has already created a defacto gun registry, which the Constitution forbids, is now watching to see if you go and practice, to develop/maintain competency.
Why do you think they preemptively started telling all these stories about how great these cameras have been? Because they've been abusing them, like they abuse everything else, and they don't want to be forced to give them up.
The courts have ruled, somewhat in error, that you have no expectation of privacy. However, what you DO have expectation of, is the government not conducting constant surveillance of you without valid reason and a legally and honestly obtained warrant.
People keep talking about the cell phones tracking you. Yeah, one arrant must be obtained to get your location data. Another to get your call or text history. And the cell phone companies have been fairly decent, at least, about protecting you and your privacy.
These cameras and companies protect nothing. And if you think the government is doing this for your protection and in your best interest, try to remember the last time they actually protected you or acted in your best interest.
