Six months into an unresolved military engagement in the Gulf, the United States finds itself caught between the failure of diplomacy and the weight of open-ended military commitment. Energy Secretary Chris Wright's candid admissions on Sunday — that a nuclear deal with Iran may never materialize, and that the Strait of Hormuz requires American naval escort to remain passable — reveal a nation managing a crisis it has not yet found a way to end. History has long shown that conflicts without clear exits tend to define the administrations that inherit them, and the questions now being asked abou