Bill Gates, co-chairman of the Bill & Melinda Gates Foundation, speaks during a plenary session at the 42nd annual meeting of the World Economic Forum, WEF, in Davos, Switzerland, Thursday, Jan. 26, ... more 
Bill Gates, co-chairman of the Bill & Melinda Gates Foundation, speaks during 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 4:09 AM EST