The presidents of Brazil, Venezuela, Peru, Colombia, Bolivia, Chile, Surinam and Guyana attended the summit.

BBC: South American Summit

What the Central Bank presidents of Brazil, Russia, India and China want to know is if another round of monetary stimulus is in the cards?

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Nicolas Maduro was sworn in as president of Venezuela on April 19 in the presence of a number of Latin American presidents including, Rouseff of Brazil, Kirchner of Argentina, Ortega of Nicaragua, Morales of Bolivia, and even Santos of Colombia.

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The leaders attending the Progressive Governance Conference in the seaside resort city of Vina del Mar are Presidents Michelle Bachelet of Chile, Luiz Inacio Lula da Silva of Brazil, Christina Fernandez de Kirchner of Argentina and Tabare Vasquez of Uruguay as well as Prime Ministers Gordon Brown of Britain, Jose Luis Rodriguez Zapatero of Spain and Jens Stoltenberg of Norway.

CNN: Biden meets leaders ahead of G-20 summit