What countries have been successfully or unsuccessfully stopped from geting nuclear capability?

Question

A list of all countries successfully stopped from, or unsuccessfully stopped from nuclear capability would be very interesting.

Answer 1

Cuba for one was stopped. Maybe it's the only one.

Answer 2

Here is a long list of nations that at one time had some nuclear capablity and now dont

http://en.wikipedia.org/wiki/List_of_states_with_nuclear_weapons#States_formerly_possessing_nuclear_programs

Answer 3

Iraq,Syria,Iran,North Korea,Lybia,Most of Africa,Sudan and all the radical s of the rest of the crazy world.