[firstdown]

Originally Posted by NC_Skins

I don't think it's as simple as them having some barometer showing "This is X's enriched uranium", but I positive they would be able to break down the composition and tell which reactor (and make) it came from, thereby narrowing down the possibilities.

Nuclear bomb debris holds clues to who planted it - science-in-society - 08 November 2010 - New Scientist


As far as NK goes, I wouldn't put it past China to invade NK before we could just so that scenario you mention didn't happen.

Sounds more like you would have to make an educated guess at best. We could let Collen Powell present the evidence to the UN. I hear he is pretty good at that. You say don't fear it getting into the wrong hands but that's our goverments biggest fear and why we care who has the capability.