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Mexican tycoon Carlos Slim smiles as he arrives to a reception in honor of Turkish President Recep Tayyip Erdogan and his wife Emine as guest of Mexico's President Enrique Pena Nieto at the National Palace in Mexico City on February 12, 2015. Erdogan is in Mexico on a two-day official visit. AFP PHOTO/ Yuri CORTEZ (Photo credit should read YURI CORTEZ/AFP/Getty Images)

Mexican tycoon Carlos Slim smiles as he arrives to a reception in honor of Turkish President Recep Tayyip Erdogan and his wife Emine as guest of Mexico's President Enrique Pena Nieto at the National Palace in Mexico City on February 12, 2015. Erdogan is in Mexico on a two-day official visit. AFP PHOTO/ Yuri CORTEZ        (Photo credit should read YURI CORTEZ/AFP/Getty Images)