As Boz notes, it must be a special affront for Argentina's president, Nestor Kirchner for Hugo Chavez, Evo Morales and Rafael Correa to be meeting with Mahmoud Ahmahdinejad, given allegations of Iran's involvement in the bombings of the Israeli Embassy in 1993 and the Argentine Jewish Mutual Aid Association offices the following year. The allegations have resulted in the indictments of among others, former Iranian president, Ali Akbar Hashemi Rafsanjani.
None of this would have happened without the efforts of President Kirchner, who has put human rights and justice at the forefront of his agenda, including addressing figures responsible for the beginning of the Dirty War, most recently, Isabel Peron and Juan Morales. If Chavez were a rational man and were more interested in justice than in sticking his finger in the Bush administration's eye, he would see how this offends Argentina.
One wonders, however, if part of this is the fact that Chavez, at his core is a military man and Kirchner is one leader in Latin America who is actively trying to diminsh the role of and the power of the military in his country.