Item to remember: there is a significant difference between a North Korea with a bomb or two, without the capacity to make more for the next few years, and a North Korea with a dozen bombs and the capacity to produce them at will.

If North Korea has a single bomb, or two bombs, then they will hoard it as their final deterrent against a US attack, or their best offensive weapon in a campaign to conquer the South.

If North Korea has plenty of bombs, and plenty of nothing else, they will sell the bombs to anyone with the ability to pay for the bomb and sneak it out without the US noticing.

Which says to me that we should get as much plutonium and uranium out of North Korean hands as possible, by any means necessary.