Originally Posted by Aryan

India also stands a good chance because India has a lot ,more experience with Uranium 233.

But the idea that a suitcase nuke can be 150kt is a little farfetched, but a 20-40kt nuke would be very impressive. The biggest contraint is the limitations imposed on the implosion system, and the possibility of the use of any tamper or reflection (besides beryllium) is excluded.

"The Uk scores very high because there are few things the US does that the Uk doesn't get told about."

Bull.

I'd put Russia on the top of that list, as it is the only country that we know has produced them in the past, but the N5 all have the technical capacity to make them.