Ray, It should be remembered that it was General Zahedi who had the Hitler portraits and other Nazi ephemera. It was the exiled shah and the pahlavi cronies who kept this Nazi psychopath revved up, and it was eventually an unwise intervention by Western powers that put the Nazis fellow-traveller into power in Iran in 1953 when they overthrew the democratic government of Dr Mossadegh.
If anything is to be learned from history is it that when you inject such poison into the political bloodstream it can have serious side effects. Think about it: a democratic government was overthrown, all democratic opposition was liquidated. What passed as rational disscussion could only take place in very limited contexts, one of those being through the mosque. Result: political debate became a retarded form of religious debate, and when the shah fell it was to religious fundamentalists, ie the only medium through which people could associate, debate and mobilise.
President Mahmoud Ahmadinejad is a populist opportunist, and was elected on a protest vote. His domestic political agenda is non-sensical, and there is always a need to have scapegoats at hand and out-groups for him to target. But he's no Nazi, and the Iranians have had plenty of those in their recent history. A further Western intervention into Iranian politics would be a disaster, worse than any Bay of Pigs, as there are 300 strike targets and over 150,000 sitting ducks in Iraq as retalitory targets.
It will be difficult to bring him to heel but an external threat allows him to portray domestic opposition as being anti-Iranian collaborators and traitors, in effect he gets to wrap the national flag around himself. He's a passing phase, elected because of his anti-establishment posturing when mayor of Tehran, and he would lose support if he ever had to face the problems of his country rather than be entertained through all his side-shows being facilitated.
The history lesson would be more one on how not to manage a situation, as we are playing into his hands through militarising what is still a political situation within a soverign state and voluntary signatory to international treaties.