Chile's President Sebastian Pinera, right, and Mexico's President Felipe Calderon walk at Los Pinos presidential residence in Mexico City, Friday July 8, 2011. Pinera is on a three-day official visit ... more 
Chile's President Sebastian Pinera, right, and Mexico's President Felipe Calderon walk at Los Pinos presidential residence in Mexico City, Friday July 8, 2011. Pinera is on a three-day official visit to Mexico. (AP Photo/Marco Ugarte) less 
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Associated Press | Photo By Marco Ugarte
Fri, Jul 8, 2011 1:56 PM EDT