GENEVA (Reuters) – World powers aim to clinch a preliminary deal to curb Iran’s nuclear program in politically charged talks resuming in Geneva on Wednesday to end a long standoff and head off the risk of a wider Middle East war. The United States, Russia, China, France, Britain and Germany came tantalizingly close to winning concessions from Iran on the scope of its nuclear work in return for some sanctions relief at negotiations in the Swiss city on November 7-9. Top policymakers from the sextet have since said that an interim accord on confidence-building steps to start defusing a decade of suspicion and hostility between the West and Iran could finally be within reach. But diplomats caution that differences remain and could still prevent an agreement during the talks Wednesday through Friday. “There is a good chance. There is a hope the Iranians realize it’s a good deal and […]