The availability of cheap sick is what makes the lack of privacy naturally different. There was a time where a police department could identify a suspect, talk to a judge, and then had that person followed for a while, dedicating multiple people to the efforts. With enough cameras and disk space, you now identify a person, and they were pre-followed for who knows how long.
Then again, it depends on where you are. One could have thought that finding a specific guy in NYC after you had him on camera at a given time would be easy, but they aren't so easy to locate immediately.