Bill Gates, co-chairman of the Bill & Melinda Gates Foundation, right, and Ngozi Okonjo-Iweala, coordinating minister for economy and minister of finance of Nigeria, left, attend a plenary session at ... more 
Bill Gates, co-chairman of the Bill & Melinda Gates Foundation, right, and Ngozi Okonjo-Iweala, coordinating minister for economy and minister of finance of Nigeria, left, attend a plenary session at the 42nd annual meeting of the World Economic Forum, WEF, in Davos, Switzerland, Thursday, Jan. 26, 2012. The overarching theme of the meeting, which will take place from Jan. 25 to 29, is "The Great Transformation: Shaping New Models". (AP Photo/Keystone, Jean-Christophe Bott) less 
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Associated Press | Photo By Keystone, Jean-Christophe Bott
Thu, Jan 26, 2012 4:25 AM EST