Former Nigerian President Olusegun Obasanjo (2nd R) addresses a session alongside Kofi Annan (L), chairman of Alliance for a Green Revolution, Irish rock star Bob Geldof (2nd L) and Peter Eigen, a member of the Africa Progress Panel (APP), during the World Economic Forum on Africa in Addis Ababa, May 11, 2012. REUTERS/Tiksa Negeri (ETHIOPIA - Tags: POLITICS BUSINESS ENVIRONMENT)