North Korea has launched a new purge, targeting citizens with long hair and ordering them to copy Kim Jong-un's much-mocked 'ambitious' style. Here are three examples showing the leader's luxurious black 'barnet'. Sources in Pyongyang, quoted by South Korea's Chosun Ilbo newspaper, said authorities in the North Korean capital have issued an order requiring that men keep their hair to a maximum 2 cm (0.8 inches) in length.