There's concern in Washington and elsewhere that the US is ill-prepared for another round of talks.
Trump is out of his depth.
A day after the sudden announcement of the agreement to talk, the White House was backtracking, suggesting there may be some preconditions to a meeting; this underscores the lack of consideration in the President's impetuous decision to meet Kim.
There still hasn't been any direct contact with North Korea.
The Trump Administration lacks expertise on North Korea. There's not enough intelligence on Kim and the American public is in the dark.
So for all the excitement over the announcement of the overtures that produced the upcoming talks, made at the White House by South Koreans, the fundamental problems and perils are unchanged.
The talks, which are supposed to take place at an undetermined locale by the end of May, would be between Trump and Kim, but China is a looming presence.
Trump likes to claim that China has lots of leverage with North Korea, since about 80 per cent of Pyongyang's trade is with its giant neighbour.
Yet the reality is that these two countries have contempt for one another; their alliance is a marriage of convenience. The Chinese ambassador to North Korea has never met Kim. China hates the idea of a nuclear-armed North Korea, but hates even more the prospect of a regime collapse resulting in an American-dominated Korean Peninsula.
How about Trump's threat of a pre-emptive strike? Is that his fallback if talks fail? It has been seriously discussed, and Trump claims that this threat, along with tough economic sanctions, forced Kim to the bargaining table.
Yet even in the unlikely event that US bombs could quickly take out all of North Korea's nuclear weapons, that would leave 10,000 artillery batteries that could hit Seoul and its 10 million people only 55km away from the border. Not to mention vulnerable US military bases.
Some North Korea hawks argue that Kim is a delusional madman. If that's the case, then all options for dealing with him are bad, and the goal must be to choose the one that does the least harm, even if that involves widespread death and destruction.
But there's another informed perspective. Consider the view of Jung Pak, a Brookings Institution scholar who for nine years was a leading North Korea analyst at the Central Intelligence Agency. In a recent interview with Politico's Susan Glasser, Pak said that Kim is "more rational than suicidal." He doesn't want a military confrontation in which he would be eradicated, which would occur if he struck first.
Though a murderous dictator, he has looked pretty shrewd: sending his photogenic sister last month to the Winter Olympics in South Korea, where she was a big hit, displaying a sunny exterior in meetings with South Korean officials and initiating talks with Trump.
He desperately wants to end punishing economic sanctions, begun under President Barack Obama and toughened under the Trump Administration. And his successful missile tests over the past year bring him to the negotiating table in a stronger position than North Korean leaders enjoyed in the past.
That's one reason that there's virtually no chance that he will get rid of his nuclear weapons.
"It's simply inconceivable that he will accept full denuclearisation at this point," said Colin Kahl, a national security expert at Stanford University and former foreign policy adviser to Vice-President Joe Biden.
Many Korea-watchers note that the North Koreans often cite the example of Libya's Muammar Gaddafi, who gave up his nuclear programme and later was overthrown and killed.
It's important to hear soon from former officials who participated in the earlier failed agreements with North Korea.
If the goal is a weapons freeze, how could it be guaranteed and subject to vigorous inspections? What are acceptable tradeoffs? Gradually easing sanctions? Suspending military exercises in the region? Maybe even a peace treaty, which never was signed when Korean War stopped in 1953?
There are seasoned foreign-policy experts in the Trump Administration's deliberations, notably Defence Secretary James Mattis and General Joseph Dunford, chairman of the joint chiefs of staff.
But expertise on the Korean Peninusla is thin. A top State Department expert, Joseph Yun, recently left, and the White House nixed the planned appointment of the eminently qualified Victor Cha to be ambassador to Seoul after the former national security official in the Administration of President George W. Bush privately cautioned about the dangers of a pre-emptive strike.
Immediately after the announcement of direct talks, Cha warned in a New York Times op-ed column that the initiative "raises more questions than answers."
"In years of dealing with North Korea, I have learned that the regime never gives anything away for free," he wrote.
Failed negotiations, he added, "could push the two countries to the brink of war."
- Bloomberg