UNASUR Buenos Aires

Former Argentine President Nestor Kirchner, left, Ecuador's President Rafael Correa, center, Argentina's President Cristina Fernandez de Kirchner, right, and Foreign Ministers, after Kirchner took the oath as the secretary-general of the Union of South American Nations Union (UNASUR) in Campana, 70 km north of Buenos Aires, Argentina, May 4, 2010. (Austral Foto/Horacio Paone)

Presidents and Foreign Ministers of the member countries of the Union of South American Nations Union (UNASUR) pose with newly elected secretary-general Nestor Kirchner (3rd L first row ) for the group photo after their annual summit in Campana, 70 km north of Buenos Aires, Argentina, May 4, 2010. (Front L to R) Paraguay's President Fernando Lugo, Brazil's President Luiz Inacio Lula da Silva, Ecuador's President Rafael Correa, Argentina's President Cristina Fernandez de Kirchner, Bolivia's President Evo Morales, Uruguay's President Jose Mujica and Venezuela's President Hugo Chavez. (Back L to R) Peru's Foreign Minister Jose Antonio Garcia Belaunde, Colombia's Foreign Minister Jaime Bermudez Merizalde, Guyana's Foreign Minister Carolyn Rodriguez-Birkett and Suriname's Foreign Minister Lygia Kraag-Keteldijk. (Austral Foto/Horacio Paone)

Former Argentine President Nestor Kirchner, after took the oath as the secretary-general of the Union of South American Nations Union (UNASUR) in Campana, 70 km north of Buenos Aires, Argentina, May 4, 2010. (Austral Foto/Horacio Paone)

Former Argentine President Nestor Kirchner, left, is congratulated by Ecuador's President Rafael Correa, right, after Kirchner took the oath as the secretary-general of the Union of South American Nations Union (UNASUR) in Campana, 70 km north of Buenos Aires, Argentina, May 4, 2010. (Austral Foto/Horacio Paone)

Venezuela's President Hugo Chavez attends the Union of South American Nations Union (UNASUR) summit in Campana, 70 km north of Buenos Aires, Argentina, May 4, 2010. (Austral Foto/Horacio Paone)