Just thinking about how the threat to nuke has been used successfully in the past to come to an agreement could it be NK is trying to negotiate on terms favorable to it self an armistice to the Korean war? they learned how to do this from the US, if so. Look for some emissary being announced as arriving in NK. They will be carrying a message from the White House. The President has enormous power no matter what anyone might think of his public behavior. Just look at Ike - public image: golf playing lovable teddy bear grand father. In reality, tough as nails general ready to tear the heart out of an adversary.