“The time to oppose it is when you see what it is, not to oppose the effort to find out what is possible,” Mr. Kerry said at a news conference after meeting with the crown prince of the United Arab Emirates, Mohammed bin Zayed al-Nahyan, and the foreign minister, Abdullah bin Zayed al-Nahyan…

Addressing a report that French reservations had delayed a deal at the talks in Geneva, Mr. Kerry said that the major powers were united but the Iranian delegation had not been able to accept it.

“The French signed off on it, we signed off on it,” Mr. Kerry said. “There was unity but Iran couldn’t take it,” he said.

Sheikh Abdullah said he believed the United States and its partners had adequately consulted the United Arab Emirates about its negotiations with Iran. But he left little doubt that he would oppose any deal that would give it a right to enrich uranium.