Brazilian President Luiz Inacio Lula da Silva holds a flag with a Brazilian paralympic athlete Karla Cardoso, right, during a ceremony to celebrate Olympic Day at Guabanabara palace, Rio de Janeiro, Brazil, June 23, 2008. Rio de Janeiro is a candidate city to host the 2016 Olympic Games. Chicago, Tokyo and Madrid are the other candidate cities. (Austral Foto/Renzo Gostoli)

Brazilian President Luiz Inacio Lula da Silva holds a flag with a Brazilian paralympic athlete Karla Cardoso, right, during a ceremony to celebrate Olympic Day at Guabanabara palace, Rio de Janeiro, Brazil, June 23, 2008. Rio de Janeiro is a candidate city to host the 2016 Olympic Games. Chicago, Tokyo and Madrid are the other candidate cities. (Austral Foto/Renzo Gostoli)