Maybe you’ve heard of the “Korean wave” that hit Japan recently. Apparently, so have many North Koreans, and the Dear Leader–or whoever is running things up there these days–doesn’t approve. Note that the reporter is none other than North Korean defector Kang Chol-Hwan: A former high-ranking official who recently entered South Korea as a defector said, “These days, among young North Koreans, South Korean culture is rapidly spreading. . . .” An ex-government official of the North who recently visited...