The accusation: Western governments suspect that Iran is working in secret to develop nuclear weapons. If the country fails to make concessions, it might face tougher sanctions. In Resolution 1696 from July 31, 2006, the UN Security Council first demanded that Iran end uranium-enrichment activities. But Iran insists it will not give up its nuclear rights. Here, Iranian President Mahmoud Ahmadinejad inspects a uranium-enrichment facility.