Leaders attending the South American trading bloc summit, Mercosur, pose for an official group photo at the Itamaraty palace, in Brasilia, Brazil, Friday, Dec. 7, 2012. Pictured from left to right; Chile’s Vice Foreign Minister Alfonso Navarro, Peru’s Vice President Marisol Espinosa, Guyana’s President Donald Ramotar, Bolivia’s President Evo Morales, Uruguay’s President Jose Mujica, Brazil’s President Dilma Rousseff, Argentine’s President Cristina Fernandez, Ecuador’s President Rafael Correa, Suriname’s President Desire Bouterse, Venezuela’s Oil Minister Rafael Ramirez and Colombia’s Vice Foreign Minister Monica Lanzetta. (Photo/Cadu Gomes)