re: Not the first, possibly not the worst
Is this really all that different than working some 9 to 5 job where you're at a desk or assembly station with some supervisor watching you all the time? Which was pretty much status quo for most of America for years.
Still, I wouldn't sign up under those conditions.
When I worked at the Post Office in college, the work area was surrounded by closed elevated walkways with viewing slits all over them, kind of like in some gambling joints. We were assumed to be under observation at any given time by postal officials, although for all I ever knew, nobody was in there at all. Nobody got grief for not working hard enough, or picking their nose for that matter. The only thing they were looking for was somebody screwing with the mail.