Brazil’s president Luiz Inacio Lula da Silva, right, and Petrobras president Sergio Gabrielli, listen the Brazilian national anthem at the Revolution Square in Havana, Tuesday, Jan. 15, 2008. Lula da Silva is expected to grant Cuba millions of dollars in food and infrastructure credits, while signing a deal to begin exploratory oil drilling in Cuban waters within two years. (AP Photo/Dado Galdieri)