The Colonel from Iran’s Revolutionary Guard was visibly annoyed. How, he said, could I possibly suggest talking directly with American warships when they are simply following orders from Washington, and a constant provocation and threat to Iranian sovereignty! My reply was equally emphatic, although genuinely sympathetic because this was not just a debating position but, literally, a potential matter of life and death. Our resulting animated but cordial discussion extended well into post-meeting teatime. Now, more than fifteen years later, the tragic deaths of 176 innocent civilians aboard Ukraine International Airlines flight 752 are a haunting reminder of that exchange.