Thursday is the 70th anniversary of the start of the Korean War — which never really ended. North and South Korea remain enemies to this day. In democratic South Korea, it’s illegal to praise the North, visit there, watch North Korean television or read its newspapers. But one thing South Koreans can do is visit the Pyongyang Pub, one of the country’s few North Korean-themed restaurants. Grace Moon visited the place with someone who grew up in North Korea.