Kim Ju Ae could be the next leader of North Korea. Despite only being around 13 years old, there are reports her father, Kim Jong Un, has handpicked her as his heir. So, what is known about the youngster who may become the next head of one of the world's most secretive countries? Niall is joined by Professor Hazel Smith, an expert on North Korea at the School of African and Oriental Studies. Producers: Tom Gillespie and Sam Gruet Editor: Piers Wisbey