Iranians and analysts alike say the leaked diplomatic cables show a half-hearted attempt at engagement, undermined by an assumption that engaging Iran was pointless.
The US, at the urging of partners, has weakened proposed Iran nuclear sanctions at the urging of allies. A defiant President Mahmoud Ahmadinejad said no country could stop 'the fast speeding train of Iranian progress.'
Brazil's Foreign Minister Celso Amorim told Secretary of State Hillary Clinton that Brazil doesn't support Iran sanctions. He wants more negotiations. The US worries about the growing closeness of Iran and Brazil.
Gary Sick, who was the chief White House aide during Iran's Islamic Revolution in 1979 and the hostage crisis that followed, says the Green reform movement has a surprising strength. Tens of thousands of protesters have taken to the streets of Iran Thursday.
Iran says the 10 new nuclear sites are for energy, not weapons, but sent mixed messages on whether it will remain in a member of the Non-Proliferation Treaty.
Experts say Iran's plans to build 10 new nuclear plants is not within its capabilities for years, but Iran President Mahmoud Ahmadinejad said they would manufacture 500,000 new centrifuges.
The strong ties between President Mahmoud Ahmadinejad of Iran and his Venezuelan counterpart Hugo Chávez are well known. But Brazil's support has set this regional tour apart.
The real test, caution some, is whether Iran follows through on the tentative nuclear deal that would effectively prevent Tehran from developing a bomb.