IMF Managing Director Rato smiles at Nigeria's Minister of Finance Dr. Okonjo-Iweala at the African Development Bank Symposium in Abuja, Nigeria. International Monetary Fund Managing Director Rodrigo de Rato (R) smiles at Nigeria's Minister of Finance, Dr. Okonjo-Iweala, at the African Development Bank Symposium in Abuja, Nigeria, May 17, 2005. Rato was in Abuja on Tuesday for talks with President Olusegun Obasanjo about efforts by Nigeria to strengthen management of its oil revenues, and is also scheduled to visit Benin, Niger and Chad later this week. REUTERS/STEPHEN JAFFE