One way or another that's pretty well established, when the Khan network fell apart after Gaddafi saw the light after Saddam's capture and surrendered his WMD p

One way or another that's pretty well established, when the Khan network fell apart after Gaddafi saw the light after Saddam's capture and surrendered his WMD program to us (and note how we rewarded him...), a key artifact was the plans for a Chinese designed highly enriched uranium implosion device, down to the factory floor level of detail, like apply this much torque to this nut, and use this kind of thread locker (e.g. Loctite in the US). Maybe the PRC counterintelligence guys screwed up, but....