Colombian President Alvaro Uribe speaks to President-elect Juan Manuel Santos (left) during a military ceremony in Bogota, Colombia, on Aug. 6. Mr. Santos was inaugurated as Colombia's president, succeeding Mr. Uribe. (Associated Press)

Colombian President Alvaro Uribe speaks to President-elect Juan Manuel Santos (left) during a military ceremony in Bogota, Colombia, on Aug. 6. Mr. Santos was inaugurated as Colombia's president, succeeding Mr. Uribe. (Associated Press)