Mr da Silva does not seem tempted to resort to economic populism, which would anyway risk angering voters who value low inflation as much as faster economic growth.

ECONOMIST: Heads roll in the Workers' Party

Last year in this column I wrote about the one-of-a-kind Da Vinci-The Genius put on by Imagine Exhibitions Gallery at The Venetian casino resort in Las Vegas.

FORBES: National Geographic's 50 Greatest Photographs Displayed

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