Failure to finalize a framework agreement between Iran and the six major powers aimed at curbing the country’s sensitive nuclear work could profoundly destabilize the Islamic Republic, analysts and politicians say. Iranians’ hopes of ending their international isolation have risen so high since the accord that failure to finalize it would generate levels of dismay that could hurt the authorities, even if the West was portrayed as the guilty party, analysts say. “Finally it is over. The isolation is over. The economic hardship is over. (President Hassan) Rouhani kept his promises,” said university student Mina Derakhshande, who was among a cheering crowd on Friday. “Failure of the talks will be end of the world for us Iranians. I cannot tolerate it.” Managing popular expectations will be more difficult in Iran now, said Karim Sadjadpour, an Iran expert at the Carnegie Endowment for International Peace in Washington. […]