"I think that he's going to surprise on the upside, very much on the upside, we'll see", Trump said in Quebec of Kim.
What can we expect from the summit?
The Trump-Kim meeting be the first between a sitting US president and a North Korean leader. Instead, Trump acknowledged, the summit is unlikely to achieve a major breakthrough, stating that at minimum he would like to "start a dialogue" with Kim.
Trump has said he believes Kim would agree to denuclearization - and Secretary of State Mike Pompeo said Thursday he had received Kim's personal assurances to that effect - but the two countries have offered differing visions of what that would entail.
In a statement, Singapore's Immigration and Checkpoints Authority said Wun was interviewed for about 45 minutes.
When US President Donald Trump meets his North Korean counterpart Kim Jong-un on Tuesday in Singapore, the eyes of the world will be on them.
"For North Korea to have the security assurances it needs, it needs to know that it has an economic - economically viable path forward". In 2003, Libya agreed to give up its nuclear, chemical, biological and missile programs to restore its standing in the worldwide community and get sanctions relief.
On the North Korea summit: "I'll be on a mission of peace, and we will carry in, really - in my heart, we're going to be carrying the hearts of millions of people, people from all over the world". Although then-South Korean President Syngman Rhee, who wanted to fight on until the North was crushed, refused to sign the armistice, it still took effect.
What Bolton meant by the Libya model was that the "U.S. seeks Pyongyang's quick, front-loaded dismantlement and shipment overseas of its nuclear apparatuses, as Libya did in the early 2000s", said Lee.More news: Argentina confirm Enzo Perez as Manuel Lanzini's World Cup replacement
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Still, it's a serious contrast to the days a year ago when choice insults - Trump's "little rocket man" and Kim's "dotard" - were flying between Washington and Pyongyang during the North's nuclear and missile tests. Pyongyang's ICBMs have the range to hit the U.S.
North Korean leader Kim Jong Un has only said he's willing to discuss the idea, but hasn't made any firm promises to do so.
Rodman is one of a handful of Westerners to have visited reclusive North Korea and met with Kim, and he most recently traveled there a year ago as a private citizen.
He added, "If they retaliate they are making a tremendous mistake".
The one thing it is impossible for North Koreans to understand, however, is how big the difference in prosperity is between their country and developed nations like the US and South Korea.
"He might as well have said, 'Carry on, '" Lee said.
He said he is planning similar stunts for the objective of political satire in the coming days, this time in tow with Donald Trump impersonator Dennis Alan. "My experience is that Americans sometimes don't recognise progress when they see it from the North Koreans, and thus may miss openings".
Should the agreement be binding?
The group says it has trained about 2,000 North Koreans and brought about 100 to Singapore, with its most recent workshop in North Korea in May, and two more scheduled in August and November. "I think it would be well received and I think [Kim] would look at it very favorably".