Kim Jong Un's teen daughter, his potential successor, makes her International debut in China

This teenage girl is likely the next leader of North Korea. That's according to experts and South Korea's intelligence agency. Her name is Kim Ja and she is the daughter of North Korean dictator Kim Jong-un.Now Kim and his wife are believed to have three children. We've only ever seen Jer though in public. Over the last year, she has been at her father's side constantly, from the launch of this battleship to the surreal opening of this water park.But because North Korea is so secretive, there's a lot we don ...