Prefaced with a touch of sarcasm, allow me to note that the UN progress in gathering information on North Korean human rights is proceeding rather slowly, as reported by Yonhap News:
The term of a U.N. council's special rapporteur for North Korean human rights has been extended by another year. Vitit Muntarbhorn, a professor of law at Bangkok's Chulalongkorn University, Muntarbhorn was named special rapporteur on the situation of human rights in the Democratic People's Republic of Korea, the North's official name, on July 13, 2004.
The special rapporteur is mandated to investigate the human rights situation in the North and report his findings to the council and the General Assembly.
Since his appointment two years ago, the Thai professor has made several trips to South Korea, but his repeated requests for the North to allow him to visit the communist state have yet to be accepted. [Boldface mine]