Visas are being denied, insults are flying, and ambassadors are caught in the crossfire: Two months before Brazil's election, diplomatic tensions are flaring between President Lula's leftist administration and the right-wing governments of Argentina and the United States.
"We cannot accept interference," leftist President Luiz Inacio Lula da Silva said in an interview Wednesday, a day after the United States announced it had revoked the visa of Brazil's ambassador.