Execution of North Korea's Jang Song Taek
Subway commuters in Pyongyang, North Korea, read the news of Jang Song Taek's execution. More executions of older government officials are expected. (David Guttenfelder / Associated Press / December13, 2013)
  • December 13, 20136:24 p.m.
  • BEIJING — It is North Korea's version of a youth revolution, and it's making a lot of people nervous.
  • At 30, Kim Jong Un may well be the world's youngest head of state. His brother, Kim Jong Chul, two years older, is best known as an avid Eric Clapton fan but is also said to keep an eye on the leader's security. And the youngest of the Swiss-educated siblings, 26-year-old sister Kim Yo Jong, is seen frequently as an aide-de-camp to the leader.