I forget what the title of it is, but there is a cool documentary on Netflix, where a reporter goes into North Korea as a doctor's assistant. It's crazy how brainwashed the people there are, but after a few generations of being fed the same crap it's understandable. The doctor that she went there with was there to help thousands of cataract patients. He helped like a 1,000 people see again, and every time they took the bandages off their eyes, they immediately thank a poster of Kim Jong Il, and never the doctor.