In the 1970s and 1980s, dozens of Japanese citizens were abducted by North Korea. Many were used to help train North Koreans to fit into Japanese society as spies. Officially there were just 17 such cases but Japan's National Police Agency estimates that as many as 860 of the nation's missing persons may have been abducted by Pyongyang. Now Tokyo says it is determined to secure the return of all of its citizens. Why did it take so long to Pyongyang to admit these kidnappings? The Japanese government says it is going to set up a commission, but in more than a decade it seems that there have not been much progress, why? Have other countries been involved in the abducted citizens case and tried to help Japan to get the detainees back? Will Pyongyang end up to admit that there are more abductees than 17? What the actual number might be? Why would Japan ease sanctions for getting back its own nationals?