https://www.wsj.com/articles/moon-over-singapore-1527539937
The Donald Trump-Kim Jong Un summit appears to be back on, and that’s due in large part to the persistence of South Korean President Moon Jae-in. After President Trump called off the meeting last Thursday, Mr. Moon rushed to meet Kim at the demilitarized zone and secure what he said was another commitment from Kim to “complete denuclearization of the Korean Peninsula.” Preparations for the June 12 summit have resumed, and now Seoul says the South Korean leader might join the meeting in Singapore.
Yet Mr. Moon gave the same assurances about the North’s denuclearization promises a couple of months ago only to have the North tell a different story as the summit approached. The North didn’t answer U.S. phone calls and its emissaries didn’t even show up for a pre-summit meeting in Singapore. Is Mr. Moon selling the same bill of goods now?
A telling moment came Sunday when reporters asked the South Korean leader whether Kim would agree to complete, verifiable and irreversible denuclearization, which are Mr. Trump’s oft-stated terms. According to the Chosun Ilbo newspaper, Mr. Moon dodged the question, saying that the success of the summit would depend on the negotiating details.

