For a start, most repressive systems in history were phisical, not bureocratic. In them the boreocracy existed mainly to feed data to the police, and the police supported the regime. Our current ovespecialization made it impossible to survive outside of the system, thus the bureocracy grew real teeth and the importance of the police reduced. Nowadays a government can almost kill a person just by making it impossible for him to use a bank account.
And them, the hightly sophisticated part... Well, it probably would be better described as hightly technological propaganda. Sistematic research on propaganda started arount the 30's, and high tech one is quite new. So new that I have no idea how it looks like, and if the current actions are it or not.