because they have tried for over two decades. it's not true we have not pursued diplomacy. we have an agreed framework six-party talks. we have had many agreements with north korea. it's not about getting to agreement, because we have agreements. but every single agreement has failed because of over-verification, because north -- and today honestly i think we're at different stage. north korea is not going to give up nuclear weapons. they're so close to completing and perfecting their nuclear arsenal, having this capability to attack mainland united states with a nuclear weapon, why would they give this up now? they said over and over look what happened to gadhafi. he gave up nuclear weapons and he's dead. this is the only way for the region to survive. >> what does the united states do in this circumstance? >> you know, in the movies you used to have what's called a mexican standoff, everybody pointing guns at each other and nobody knew what to do. for 60 years we've been in the same situation on korea. the north has its gun at the head of the south. and always has.