North Korea is one of the most secretive nations on earth. Despite severe financial sanctions, the nation has defied international pressure and developed a costly nuclear weapons program. The question is, where is all that money coming from? Officially, Bureau 39 does not exist. But leading experts on the North Korean regime say it’s essentially the cash making machine for the Kim regime. In this investigation, from Germany’s ZDF, the story reveals the extensive web of operations carried out at the instruction of Bureau 39. From money laundering to arms smuggling, insurance fraud and human trafficking, the scale is extraordinary.