The UN General Assembly has been described as “diplomatic speed dating.” But a better term for the last two weeks in North Korea diplomacy might be “diplomatic whiplash.”

Two weeks ago, U.S. Ambassador to the United Nations Nikki Haley castigated Russia in the UN Security Council for “actively working to undermine the enforcement” of sanctions targeting North Korea.

Later that same day, South Korean President Moon Jae-in arrived in Pyongyang for the third inter-Korean summit of the year, where North Korea said it would shut down the Yongbyon facility in return for “corresponding measures