This does not mean they are anywhere near capable of putting a nuclear warhead on any of their missiles. That said, it's still an important event in the fact that such a device can be put on a ship, taken to a port, and detonated in a major population center.
You know if Iranian "observers" were present for the 4th of July missile tests, they were also around for this. The above scenario is not something I would put past either NK or Iran.
Oh, I think one of the first things they'll do is sell one to Iran.
this sort of scenario or something similar is our worst nightmare, exactly why I said NUKE them right now back into the stone age, may God rest their souls.