Proliferation shouldn't be a problem
Listening to a solidly informative and sane discussion
of the 'problems' posed by Persia and North Korea.
One of the speakers, discussing proliferation, said "North Korea sells its missiles to the highest bidder."
Well? So let's be the highest bidder.
Operate through several convincing Arab or Soviet-bloc middlemen. Buy everything that comes on the market; take it apart to examine the technology; then destroy it.
Zero problems. Would require some money, but would cost a whole fucking lot less than a war.