Microsoft Chairman Bill Gates, right, and Mexican telecommunications tycoon Carlos Slim attend 

Microsoft Chairman Bill Gates, right, and Mexican telecommunications tycoon Carlos Slim attend the inauguration of a new research center at the International Center for Improvement of Corn and Wheat (CIMMYT) in Texcoco, Mexico, Wednesday, Feb. 13, 2013. Gates and Slim teamed up to to fund the seed breeding research complex, which the CIMMYT says aims to sustainably increase the productivity of maize and wheat systems to ensure global food security and reduce poverty. (AP Photo/Eduardo Verdugo)
Associated Press
Microsoft Chairman Bill Gates, right, and Mexican telecommunications tycoon Carlos Slim attend the inauguration of a new research center at the International Center for Improvement of Corn and Wheat (CIMMYT) in Texcoco, Mexico, Wednesday, Feb. 13, 2013. Gates and Slim teamed up to to fund the seed breeding research complex, which the CIMMYT says aims to sustainably increase the productivity of maize and wheat systems to ensure global food security and reduce poverty. (AP Photo/Eduardo Verdugo)
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