Similarities bet. District 13 and North Korea: 1) Because of restrictions, it's almost like it's separated from the rest of the world. 2) It is a nuclear weapons state. 3) There were some times in the past when the media speculated that photos and videos of Kim Jong-il were older than they seemed, and that time he was actually indisposed.
Oh I can definitely see those similarities and I’m quite sure Suzanne Collins did that on purpose. Great observation!