Ok lets assume that this is more than fear mongering. The US with their satelites viewing system and spy planes will know hours prior to a launch that they are serious. Don`t you truly believe that if the PTB didn`t truly want this to happen they would blow this thing up before it got a foot off the launch pad.
The other thing the US has surface to air missiles to take out the opponents` warheads. (remember the patriot missile s that took out the scud missiles in Iraq) I am sure that the warships stationed in the ocean around NK are fully equipped.
