Under Secretary for Terrorism and Financial Intelligence David Cohen photographed in his office at the Treasury Department on Jan. 29 in Washington, D.C. Photo: Madeline Marshall/The Wall Street Journal WASHINGTON—Iran’s economy is now fundamentally incapable of recovery without a nuclear accommodation with the West, increasing Washington’s leverage in final negotiations with Tehran, said the Treasury Department’s outgoing sanctions czar David Cohen . “They’re stuck. They can’t fix this economy unless they get sanctions relief,” Mr. Cohen said in an interview with The Wall Street Journal about sanctions policy around the world. “I think they are coming to the negotiations with their backs to the wall.” Mr. Cohen is leaving his post to assume the No. 2 spot at the Central Intelligence Agency, where he’ll continue to spearhead U.S. efforts to contain Iran, Russia, North Korea and other American adversaries. Mr. Cohen has been a central player at Treasury […]