As President Luiz Inácio Lula da Silva heads to Tehran this weekend to make what many Western diplomats consider a last-ditch attempt at persuading Iran to temper its nuclear ambitions, officials in Washington have expressed concern that the effort could backfire, helping the Islamic republic to block - or at least delay - the United States and its allies from imposing sanctions.
Earlier on Tuesday, French President Nicolas Sarkozy said the nuclear fuel swap with Iran was a "positive step" and it was waiting for Tehran to provide full written details, as China and Lebanon also voiced their support for the new deal.
Brimming with confidence, Brazilian President Luiz Inacio da Silva is raising his country's global status with increasing forays into international politics. In his most recent coup, he convinced Iran to agree to a controversial nuclear deal. Could it offer an opportunity to avoid both sanctions and war?