U.S. Secretary of State John Kerry shakes hands with Iranian Foreign Minister Mohammed Javad Zarif before a meeting in Switzerland last week.
U.S. Secretary of State John Kerry shakes hands with Iranian Foreign Minister Mohammed Javad Zarif before a meeting in Switzerland last week. Rick Wilking AP
U.S. Secretary of State John Kerry shakes hands with Iranian Foreign Minister Mohammed Javad Zarif before a meeting in Switzerland last week. Rick Wilking AP

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