In this June 17, file photo, Iranian President-elect Hasan Rouhani, places his hand on his heart as a sign of respect, after speaking at a news conference, in Tehran, Iran. American officials are hailing Rouhani's victory as the first tangible evidence that the U.S. strategy is affecting Tehran's nuclear policy after wreaking havoc on its economy. The draconian sanctions weighed heavily in the June 14 vote for Rouhani, a candidate who openly criticized how his country's leadership has handled the nuclear file. (AP Photo/Ebrahim Noroozi)
WASHINGTON: Secretary of State John Kerry said in an interview that the U.S. is nearing a final “crunch time” on Syria — in which it will either make progress toward a cease-fire or begin moving toward “Plan B” and new military moves.