That’s what this is all about. These two are now bargaining chips. Also, if we attack NK, then they’re dead. NK is preparing for something.
If Obama had the guts to do anything as to North Korea in any respect, this wouldn’t happen. The last thing they’d want is anything controversial or negative to excuse real actions, such as saaay, nuclearizing Japan, ooor a blockade, or a preemptive strike on sites.