Re: Never understood the obsession with ICBMs
Why not just put it into a s. korean shipping container - or a chinese one - or a vietmanese one etc
While that would work after a fashion, it's not a very effective use of a bomb that powerful. Atomic weapons don't explode at ground level, they're used in air bursts. (You'll notice even in static atmospheric tests, the "gadgets" were invariably on tall towers.) That's not to say it wouldn't be effective as a terrorist weapon -- it would irradiate a lot of dirt and throw it into the air, for one thing -- but it's not the best bang for your buck. At that point you might be better off with a conventional "dirty bomb."
Also, nuclear weapons are first and foremost about a deterrent effect. If you're trying for a deterrent, having a ship loitering offshore all the time is not ideal, especially since, for a proper deterrent effect, you'd have to make it known you had a ship loitering offshore (although maybe not which one.)