United Nations Ambassador to the United Nations Nikki Haley arrives at The European Spallation Source (ESS) in Lund, Sweden, Friday, April 20, 2018. The annual informal working meeting with the UN Secretary-General and the Security Council will be held at Dag Hammarskojld's farm Backakra in Skane, southern Sweden on Saturday. (Johan Nilsson/TT News Agency via AP)
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