The fear that nuclear capability will get into terrorist hands is real.
While the worlds has focussed on Iran, North Korea has proven it’s nuclear skill, and is now developing credible submarine capabilities to deliver their warheads to America’s mainland.
Diplomacy does not work in the absence of sane dialogue.
Relying on the dysfunctional United Nations is not an option. Neither is a preemptive strike. Making the submarine threat disappear has been suggested.
None of the options are good. Finding the right solution will take wisdom.
Good luck with that.