Video from Pyongyang shows North Korea’s leader Kim Jong-un looking very dour as he attends the memorial service to mark the 10th anniversary of his father’s death. As part of the national memorial, North Koreans have been banned from showing any sign of happiness. The restrictions include an explicit ban on laughter and alcohol during the 11-day period of mourning. On the exact anniversary of Kim Jong-il’s death, 17 December, North Koreans were even banned from going grocery shopping