Iran’s and America’s top nuclear officials joined seven-nation talks Saturday in a move that may help resolve technical disputes standing it the way of a deal meant to curb Tehran’s atomic activities in exchange for sanctions relief for the Islamic Republic. Technical experts for Iran and the six nations it is negotiating with have been meeting alongside senior political officials. But Saturday
was the first time that Iranian Atomic Energy chief Ali Akbar Salehi and US Energy Secretary Ernest Moniz also joined in. Western officials say the US decided to send Moniz only after Iran announced that Salehi will be coming. Still, their presence could improve chances of a deal by fast-tracking complex technical details of constraints on Iran’s nuclear programs that are acceptable to Tehran.