[EricT.]

I think it's Iran - AND the reason for the 'terrorist illusion' is to stop retaliation.

I have heard that the source of fissionable material can be identified by it's unique atomic signature on the fallout.

Whether or not anyone acts on that evidence is a different story altogether.

[GOPJ]

Well I guess we’re blessed that no nuclear material has ever gone missing from the United States or Russia...