Any “success” in new nuclear talks between Iran and world powers will depend on bridging a trust gap that has widened since the last round of talks failed 15 months ago.
In that time, Iran has advanced its uranium enrichment expertise and material stockpiles, and not resolved questions about possible past nuclear weapons-related efforts.
Though Iran’s supreme religious leader Ayatollah Ali Khamenei declares that having nuclear weapons is a “sin,” and vows that the Islamic Republic will never pursue them, the US and some other nations demand incontrovertible proof.