L-R: Governor of the Central Bank of Nigeria (CBN), Mr. Olayemi Cardoso (left) and the Secretary General of the Islamic Financial Services Board (IFSB), Dr. Ghiath Shabsigh, on the sidelines of the Spring Meetings of the International Monetary Fund (IMF) and the World Bank Group, in Washington D.C., United States of America, Thursday.L-R: Governor of the Central Bank of Nigeria (CBN), Mr. Olayemi Cardoso (left) and the Secretary General of the Islamic Financial Services Board (IFSB), Dr. Ghiath Shabsigh, on the sidelines of the Spring Meetings of the International Monetary Fund (IMF) and the World Bank Group, in Washington D.C., United States of America, Thursday.