At the narrow mouth of the Persian Gulf, where one-fifth of the world's oil passes through a corridor of water no wider than a breath, Iran and Oman have found some measure of common ground — though not the measure the world was watching for. The two neighboring nations have reached an understanding, but Iranian state media was careful to clarify what it does not contain: any provision for the immediate reopening of the Strait of Hormuz. In the language of diplomacy, what is left unsaid often carries as much weight as what is announced, and this clarification speaks to a world still waiting fo