As the historic US-North Korea summit draws closer, two major concerns are rising with regards to US President Donald Trump.
Kim Yong-chol also brought Trump a gift, and Trump reciprocated with a gift for Kim Jong-un.
According to President Trump it likely won't be the last.
There was initially much uncertainty over whether the summit would go ahead at all, and it was briefly called off last month by Trump after a dispute with the North Koreans over the key issue of denuclearisation.
Trump's recent statement that he doesn't want to keep using the phrase "maximum pressure" against North Korea reinforced those fears.
It comes after a Washington Post report cited two United States officials suggesting the Trump administration has been "seeking a discreet way" to help pay Mr Kim's hotel bill. She also said that denuclearisation will be one of the key items on the USA agenda for the meeting, despite North Korea's earlier announcement that it will not discuss its nuclear programme with foreign leaders.More news: The Quiet Man Announced For PS4 and PC By Square Enix
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Asked about the contents of Kim's letter, White House spokeswoman Sarah Sanders declined to "get into the specifics of the letter" but added "we feel like things are continuing to move forward and good progress has been made".
Dismantling North Korea's nuclear weapons program in the manner demanded by Trump and others would take years, analyst said, assuming Kim would ever agree to such a commitment.
Jang, previously one of the most powerful men in North Korea, was purged and executed in 2013 after he reportedly built up an alternate power base to his nephew.
"All these (promoted) guys are top Kim Jong Un guys", said Michael Madden, author of the highly respected North Korea Leadership Watch blog.
Stressing that Washington remains committed to completely verifiable and irreversible denuclearization of the Korean Peninsula, Nuaert said USA talks with the DPRK in Panmunjom and Singapore "are ongoing". We can go fast, we can go slowly.
"A lot of relationships being built, a lot of negotiations going on before the trip", he said.