In an interview with Fox News, Pompeo said, "We will have to provide security assurances to be sure," referring to the US commitment to Pyongyang's regime security.
"This has been the trade-off that has been pending for 25 years. No president has ever put America in a position where the North Korean leadership thought that this was truly possible that the Americans would actually do this," he explained.
Speaking of Pyongyang's earlier statement to dismantle its nuclear site, Pompeo said it is "good news" and "one step along the way."
Pompeo said that "there's still a great deal of details to be worked on" in this regard.
"I think Chairman Kim understands that. I think he appreciates the fact that this is going to have to be different and big and special, and something that has never been undertaken before."
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