Rex Tillerson Flub Says It All?

During a meeting with Russian and Iranian foreign ministers at the United Nations headquarters late last month, US Secretary of State Rex Tillerson made an admission that went like this: "I don't know. I'm not a diplomat." Tillerson had gathered officials involved in the 2015 nuclear deal with Iran. The meeting turned out to be a sort of airing of US grievances related to the Obama-era agreement. A writer with The New Yorker outlined the exchange in a report set to be published later this month.