A South Korean dissident’s unauthorized visit to North Korea turned more controversial with word that he met North Korean President Kim Il Sung and discussed reunification of the two Koreas. North Korean news reports said the Rev. Moon Ik Hwan, 71, and three others traveling with him attended a luncheon given by President Kim. Moon, a Presbyterian minister who has been jailed often, is a leading figure in South Korea’s dissident movement. Officials in Seoul said he will be prosecuted for aiding the north, and his visit fueled demands from hard-liners for a crackdown on dissident groups.