Nuclear negotiators from six world powers and Iran head to Geneva for talks surrounded by more optimism than has been seen in years. Positive rhetoric from the new administration of President Hasan Rouhani has raised hopes that diplomacy may once again be ascendant instead of sanctions and threats of military action. Analysts say the trick will be getting the slow-moving negotiating process to respond before these expectations fade. Much will depend on the West's, and especially Washington's, willingness to consider leaving low-level uranium enrichment in Iran's hands, and on whether Congress can be persuaded to hold off on more punitive sanctions that could derail the diplomatic effort.
