This open letter to the New York Review of Books, written by Iranian emigrants, pretty much says it all when it comes to the Holocaust denial conference that was held in Iran recently.
One notable snippet:
Emphasizing that this is not the first time that the government of the Islamic Republic of Iran has resorted to the denial and distortion of historical facts;
Recalling that this government has refused to acknowledge, among other things, its mass execution of its own citizens in 1988, when thousands of political prisoners, previously sentenced to prison terms, were secretly executed because of their beliefs;
Ahmadinejad is not only repulsive, a threat to Israel, harmful to the people of Iran, but also the worst sort of ally to the Palestinians.