President Barack Obama speaks during a joint news conference with Colombian President Juan Manuel Santos during the 6th Summit of the Americas in Cartagena, Colombia, Sunday, April 15, 2012. (AP Photo/Carolyn Kaster)

Associated Press
President Barack Obama speaks during a joint news conference with Colombian President Juan Manuel Santos during the 6th Summit of the Americas in Cartagena, Colombia, Sunday, April 15, 2012. (AP Photo/Carolyn Kaster)
President Barack Obama speaks during a joint news conference with Colombian President Juan Manuel Santos during the 6th Summit of the Americas in Cartagena, Colombia, Sunday, April 15, 2012. (AP Photo/Carolyn Kaster)
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