Doesn't that excuse sound fishy to you? I assume (thought I don't know for a fact) that every gram of weapons-grade fissionable material in this country is acco

Doesn't that excuse sound fishy to you? I assume (thought I don't know for a fact) that every gram of weapons-grade fissionable material in this country is accounted for. How did it end up in a nuclear test? (Other than through bureaucratic incompetence, the likely culprit.) If we all agree that recycled nuclear fuel shall not be used for any purpose other than powering reactors, why can't we put systems in place to ensure this? How is this any harder than keeping _unrecycled_ nuclear fuel from becoming weapons? Finally, as with so much of the rationale for American public policy, the most glaring question is: France is doing it with no apparent ill effect. Why can't we?