American & the UK (particularly the UK!) trained the scientists & engineers for Pakistan & Indian nuclear weapons program. Even more so the UK for Iraq’s. If you accept these people into nuclear physics\engineering programs they are not going to go back (If they go back!) to their 3rd World corrupt shithole dictatorships (Ok India not so much!) and say to the Fearless Leader ‘Nah I only want to do Atoms for Peace’!
Well I can say this the companies involved with research and the Feds are all victims of massive bureaucracies and they do not care how or who is doing the work or reports just as long as they look good giving the presentation. I see it in my company everyday.
I think once the incentives wore off or ran out these guys cut and ran. The tech industry is rife with this and is continuing to get worse. Solution? I don’t have one that companies would use due to my bias being an American and seeing all this first hand in IT and R&D.