Donald Trump says that if his meeting with Kim Jong Un "is not fruitful," he will "respectfully leave the meeting." Steve Chapman's advice is for Trump to wear his walking shoes, because he will probably be taking a hike.

Anytime two enemies sit down to resolve their differences peacefully rather than through war, hopes rise that reason will prevail and compromise will emerge. On Twitter, Trump assured everyone, "Denuclearization will be a great thing for World, but also for North Korea!" It's tempting to think that his combination of insults, threats, and economic pressure has caused the North Koreans to see the error of their ways. But negotiations are often a tedious exercise in killing time. Often one side is not willing to meet halfway. Often neither is.

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