BRICS- Why is Brazil's Lula helping Argentina crash the party?

At the 2014 BRICS summit in Brasília, which was attended by Russian president Vladimir Putin, there was a lot of buzz in the Brazilian media that Argentina was next in line to join the organization. None of it was directly attributed to president Dilma Rousseff. Dilma, still in her first term leading the nation as the hand-picked successor of former president Luiz Inacio Lula da Silva, invited ...