Who is Kim Jong-un?

The Bulletin of the Atomic Scientists, 5/29/18

Pop quiz: Which of the following statements is true of Pyongyang’s three-Kim dynasty? (A) Kim Il-sung’s cult of personality inspired Romanian dictator Nicolae Ceausescu; (B) Kim Jong-il kidnapped his favorite film director; (C) Kim Jong-un had his half-brother poisoned; or (D) All of the above.