British Foreign Secretary William Hague said the “onus will be on Iran to convince the international community that its nuclear program is exclusively peaceful, by taking concrete actions.”
However, Ali Alfoneh, a resident fellow at the American Enterprise Institute, said Iran’s offer to resume talks is a delaying tactic, not a genuine attempt at resolving the nuclear crisis.
“Tehran believes that, as long as the negotiations continue, the United States would not launch military strikes against nuclear installations in Iran,” Mr. Alfoneh said.
Mr. Brumberg said the absence of a clear road map is to blame.
“The leaders of [the U.S. and Iran] have been unclear what they want from the other,” he said.
“The paradox of a negotiating process is that it succeeds when, in fact at the start, you have a pretty good sense of where you want to go,” he added.
• Kristina Wong in Washington and Abraham Rabinovich in Jerusalem contributed to this report.