Complex sentence: The cost of this progress is an increased infringement on individual liberties, with Superman fast becoming a Big Brother-like figure; a brain surgery technique that turns dissidents into obedient drones, or "Superman Robots", is in use.
Split into simpler sentences: The cost of this progress is an increased infringement on individual liberties, with Superman fast becoming a Big Brother-like figure. A brain surgery technique that turns dissidents into obedient drones, or "Superman Robots", is in use.