“Among the many mysteries shrouding North Korean leader Kim Jong Un, the secrecy around his mother stands out,” the BBC reports.“In his 15 years of rule, he has never once publicly mentioned her by name.”“The legitimacy of Kim’s dictatorship rests heavily on his ‘Mount Paektu’ bloodline – a lineage tied to the mythical founder of the Korean people. And in a country that prides itself on this hereditary purity, the identity of Kim’s mother is not just a secret – but a threat to the regime itself.”