Oumou Gadio, a local farmer, shows U.S. President Barack Obama an old technique for rice milling during a food security expo tour on Friday, June 28, 2013, in Dakar, Senegal. Obama met with farmers, ... more 
Oumou Gadio, a local farmer, shows U.S. President Barack Obama an old technique for rice milling during a food security expo tour on Friday, June 28, 2013, in Dakar, Senegal. Obama met with farmers, innovators, and entrepreneurs whose new methods and technologies are improving the lives of smallholder farmers throughout West Africa. (AP Photo/Evan Vucci) less 
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Associated Press | Photo By Evan Vucci
Fri, Jun 28, 2013 9:25 AM EDT