From The Horse's Mouth

Here you have, from the horse's mouth, enough clues to tell you what happened behind the curtains. It is very obvious, at least to me, that it is a case of deliberate distribution of nuclear weapons by a sovereign state. I also think that USA knew it all along about "America's Best Ally on War on Terror". Only when things went out of hand, US forced them to admit it and they made him an scapegoat. Scientist generally act in best interests of their nation. It is only the politicians who screw it up.