Former US President Bill Clinton, Microsoft Chairman Bill Gates, South African President Thabo Mbeki, British Prime Minister Tony Blair, British Musician Bono and Nigerian President Olusegun Obasanjo pose before attending the session on Africa of the annual World Economic Forum in Davos, Switzerland, Jan. 27, 2005. The forum, scheduled from Jan. 26 to 30, attracted more than 2,000 political and business leaders from all over the world for discussions on global problems and opportunities.