From Ex President Jimmy Carter:

“Pyongyang has sent a consistent message that during direct talks with the United States, it is ready to conclude an agreement to end its nuclear programs, put them all under IAEA inspection and conclude a permanent peace treaty to replace the ‘temporary’ cease-fire of 1953.

We should consider responding to this offer. The unfortunate alternative is for North Koreans to take whatever actions they consider necessary to defend themselves from what they claim to fear most: a military attack supported by the United States, along with efforts to change the political regime.”

http://www.counterpunch.org/2017/04/17/the-problem-is-washington-not-north-korea/