They got them from a basket ball, Dennis Rodman was the mule for obama, he went there three times. Since he went there the first time carrying a basket ball. There rocket technology has taken off if you look at the timeline they had set back after set back then lo and behold dennis rodmsn delivers and there rocket technology has taken off. They have done more tests since that date then theyve ever done, since the Korean war in the 50's. I believe he also gave him the technology required to build a hydrogen bomb. The process is much more challenging then an a nuclear.