An Iranian woman sits by the water in th

An Iranian woman sits by the water in the Caspian Sea city of Tonekabon, 250 kms north of the capital Tehran, on May 21, 2010. The Caspian Sea is the world's largest lake with a surface area of 371,000 kms bounded by northern Iran, southern Russia, western Kazakhstan and Turkmenistan, and eastern Azerbaijan. Iran was preparing to notify the International Atomic Energy Agency later on May 24 of a nuclear fuel swap deal brokered by Turkey and Brazil, the spokesman of Iran's Atomic Energy Organisation said. AFP PHOTO/BEHROUZ MEHRI (Photo credit should read BEHROUZ MEHRI/AFP via Getty Images)