Iran has said for more than a month that it would ‘soon’ return to indirect talks in Vienna with the US on resuming compliance with the accord WASHINGTON: Efforts to revive the 2015 Iran nuclear deal are at a “critical phase” and Tehran’s reasons for avoiding talks are wearing thin, a US official has said while raising the possibility of further diplomacy even if the deal cannot be resuscitated. US Special Envoy for Iran Robert Malley told reporters Washington was increasingly worried Tehran would keep delaying a return to talks, but said it had other tools to keep Iran from developing a nuclear weapon and would use them if need be. “We’re in a critical phase of the efforts to see whether we can revive the JCPOA,” Malley said, referring to the deal formally called the Joint Comprehensive Plan of Action. “We’ve had a hiatus of many months and the official reasons given by Iran for why we’re in this hiatus are wearing very thin.” While saying that the window for both the US and Iran to resume compliance with the agreement would eventually close, Malley said the US would still be willing to engage in diplomacy with Iran even as it weighed other options to prevent Tehran from getting the bomb. He also hinted at the economic benefits that might flow from Iran’s return to the agreement, under which Tehran took steps to limit its nuclear program in return for relief from US, EU and UN economic sanctions. While saying the window for returning to the JCPOA will not be open forever because eventually Iran’s nuclear advances will have overtaken it, Malley said Washington would continue to look for diplomatic arrangements with Tehran. “You can’t revive a dead corpse,” he said, stressing that the US had not reached that point yet. “We will continue to pursue diplomacy, even as we pursue other steps if we face a world in which we need to do that.” Malley refused to describe those other steps. Since talks in Vienna on reviving the deal adjourned in June, Washington has increasingly spoken of pursuing other options, a phrase that hints at the possibility, however remote, of military action. The envoy, who spent last week consulting US partners in the Gulf and in Europe, emphasized that all sides had “a strong preference for diplomacy, for an effort to revive the JCPOA and, were that to happen, to find ways to engage Iran economically.”