Billionaires Carlos Slim And Bill Gates Announcement On...

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Billionaires Bill Gates, left, and Carlos Slim wait for the start of... NyhetsfotoAmerika,Bill Gates,Carlos Slim,Farm,Finansväsen,Horisontell,Jordbruk,Media,Mexiko,Nordamerika,Presskonferens,Rikedom,Stor bokstav,USA,Välgörenhets- och hjälparbete,VäntaPhotographer Collection: Bloomberg 2013 BloombergBillionaires Bill Gates, left, and Carlos Slim wait for the start of a news conference to announce donations to Mexico's International Maize and Wheat Improvement Center, known by its Spanish initials as CIMMYT, in Texcoco, Mexico, on Wednesday, Feb. 13, 2013. The group, which performs research for agricultural productivity, opens its research facility this week. Photographer: Susana Gonzalez/Bloomberg via Getty Images