Many think that it's just a matter of time before North Korea is an existential threat to the U. S. "As Kim Jong Un said a few months ago, North Korea's determined to build on their nuclear and missile capabilities," Joeseph DeTrani, former director of the National Counterproliferation Center, says on this episode of Target USA. He says the U.S. and its allies have to stop it from happening. But, is it too late? Retired Lt. Col. Dan Davis, senior fellow at Defense Priorities, raises a key question on the program: "Is there a high chance that one day we'll see a mushroom cloud over Seattle?" The two experts breakdown the latest threat, the U.S.' options and what it all means for you.