1) North Korea has always played games with its negotiations. It has never deviated from its goal of obtaining nuclear weapons and missiles able to strike anywhere in the world. During the Sunshine Policy, of which you were a part since you were chief of staff under President Roh Moo-hyun, the DPRK tested its first nuclear device, with this occurring in October 2006. How will your policies be different to ensure that the West is not snookered again? Will you demand that the DPRK open all buildings to UN inspection, regardless of how they are classified? What will you do when the DPRK blocks access to a facility?
2) Will you give aid without preconditions, as was done during the Sunshine Policy? Will you require that all food aid be delivered by South Korea to ordinary North Koreans or will you transfer all aid to the government and allow it to be diverted to the military as happened before?
3) It's not clear that Kim Jong-un is completely in control of his military and bureaucracy. Take the 1976 axe murders incident as an example. Many people think those murders were ordered by someone far down the chain of command. If Kim Jong-un does not personally participate in the talks, will you leave?
4) Your traveling to Pyongyang is a victory in itself for Kim Jong-un, as his propaganda machine can trumpet the fact that the president of the other Korea is on his turf. Why not demand that the talks take place in a neutral location, for example, Vladivostok or Shenyang?
5) At one time, North Korea's labor camps held as many as 200,000 people, though they may only contain 120,000 today, but we really do not know for sure. The DPRK always denies their existence, but there are plenty of satellite photos of them. Will you demand that Kim Jong-un allow South Korea to visit and monitor these camps for human rights violations?
6) The UN Refugee Convention was originally drafted in 1951, with a 1967 Protocol. China signed both in 1982. China signed the Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment in 1987. These treaties expressly forbid the deportation of refugees back to a country where they will be tortured, imprisoned, and executed, which is exactly what happens to North Koreans when they are returned to the DPRK. With that background, you are opposed to THAAD for philosophical reasons, but China is opposed to it because it fears that the U.S. will be able to glean many of China's missile and radar secrets. Instead of unilaterally canceling the program, as it appears you will do, why not trade China for it, requiring it to deport all North Koreans to Seoul instead of Pyongyang?
7) Shenyang Machine Tool Co. Ltd. integrated European technology into the industrial milling machines it sold to North Korea, with those milling machines then used to manufacture missile parts. Will you confront China and demand that it stop supplying North Korea with weapons technology?
8) North Korea has between 10,000 and 20,000 artillery pieces located in reinforced bunkers -- actually networked caves dug into hillsides -- within range of Seoul, which could cause hundreds of thousands, if not millions of casualties, especially given that chemical munitions are in its inventory. U.S. Secretary of Defense James Mattis is well aware of this, but his boss, President Donald Trump, who you will meet very soon, is notorious for a short attention span. How will you impress upon President Trump the danger of launching a massive military attack on North Korea, given that the U.S. and the ROK combined do not have the capability to destroy all of the artillery pieces before they inflict death and destruction on an apocalyptic scale?