President Trump says he does not want a major war in the Middle East. But many allies and observers worry that hardlinders in the US and Iran are on a collision course toward conflict. The US exit from the Iran deal and the “maximum pressure” campaign have escalated tensions between Washington and Tehran in recent months. Iran has called the announced deployment of US troops to the region “a very dangerous game,” and the alleged involvement of Iran in the oil tanker attacks last week only exacerbate fears of a military clash, whether by design, by miscalculation, or by accident. The Atlantic’s Jeffrey Goldberg is joined by William Burns, a career diplomat who served five US presidents and led the secret bilateral negotiations, that resulted in the Iran Deal.