http://www.bbc.com/news/world-asia-44142046How rival agendas threaten Trump's summit with Kim
By Laura Bicker
BBC News, Seoul
North Korea is making its demands clear. This has very little to do with military drills and more to do with the Sunday talk shows in the US during which John Bolton, President Donald Trump's national security adviser, and Mike Pompeo, the secretary of state, outlined what might be on offer if Kim Jong-un gave up his nuclear weapons.
The North Koreans have been watching and they do not like what they have heard.
The whole reason the state has spent years building up a nuclear arsenal, at such a great cost, is for survival.
So to compare denuclearisation in North Korea with Libya - as John Bolton did on Sunday - is not going to offer much comfort. The regime collapsed and its leader did not survive.Rival agendas
For months, the world has heard that North Korea is willing to denuclearise and many analysts in Korea raised their eyebrows.
They warned that there was a gap between what the US and North Korea would mean by that.
America wants North Korea to give up its weapons over a set period of time and only then will it be given economic rewards.
They also want the process to be quick, perhaps over a couple of years.
North Korea's definition of denuclearisation is very different. It has always talked in terms of the entire peninsula.
That means the US has to act too - perhaps cutting the number of troops based in South Korea or also getting rid of the nuclear umbrella it uses to protect the region. If the state is going to give up its weapons it will also want security guarantees
North Korea wants the world to know that it is coming to the negotiating table from a position of strength. It may also feel that it is making all the concessions. It has suspended all missile tests and released the three US detainees. Kim Jong-un met President Moon and the pair signed a declaration, and they are about to dismantle a nuclear test site in front of international media. So to hear the Trump administration claiming credit for a deal it does not like has been a step too far. Many will say this move is straight out the Pyongyang playbook. That North Korea has a history of walking away from talks and deals. It does. It also has a lot more experience at this kind of diplomacy than the current US administration.