Here is an excellent article outlining the real reason bu$h co is going after Iran... They don't want to play with the dollar any more.
Challenging the mighty dollar
If major nations trade on Iran's oil bourse, it may start a 'dollar flight' effect
By Ramin Davoodi
What people read is that there is a growing threat of a nuclear Iran that will threaten the safety of the West. Yet, that's essentially all that is said or written on the issue. However, to critically thinking people who turn to the internet and to foreign press for their news, the brewing crisis most likely has to do with intricate issues involving our incessant dependencies, not just on oil for our transportation and industrial needs, but more importantly for the means by which our modern economic system operates in the US, UK and much of the rest of the industrialized western world (strong hint: It's not a truly "free market").
You see, control over global oil trading and pricing standards essentially underwrites the sanctity of the US dollar as a fiat (i.e. government mandated) currency for trade and investments. Were anything to threaten that delicate arrangement between control over oil pricing in particular, and our economic system in general, then there would be tectonic shifts in global finance to the detriment of the banks and energy companies that essentially dictate the means and mores of modern US-dominated geopolitics, trade and wealth creation around the world.
In 2004, Iran decided to do what Iraq did before it -- start the process of eventually selling its oil and natural gas in euros instead of the globally mandated US dollar. Yet, Iran is 'one-upping' Iraq by starting its own energy exchange, labeled the Iran Oil Bourse, which would rival the aforementioned exchanges in London and New York.
This oil bourse is set to float in Tehran in March 2006. Although scoffed at as wildly implausible by market analysts in the US and UK, the bourse has also been seen as potentially very lucrative for investors and nations' central banks that wish to diversify their currency holdings and energy trading reserves away from the US dollar. Upon prudent observation, and on par, the input of the latter crew outweigh the scoffings of the former (just do a Google search using the words "oil", "Iran", "bourse" and for extra kicks, "NYMEX").
And to answer those who claim we need to save Israel:
"Still", people claim, "that doesn't change the fact that Iran is seeking nuclear weapons." One certainly shouldn't trust the Iranian government's word on why they seek to procure nuclear technology, yet a rationalist and realist would sense that, if a major oil exporting nation wishes to launch an oil bourse that could be deemed as threatening to the US/UK-backed energy status quo, then that nation would also seek to adequately arm itself against inevitable attempts at regime change.
"Yes, but the mullahs want to wipe Israel off the map". In light of the already preexisting nuclear power inherent in Israel, Pakistan, Russia, India and obviously the US (which surrounds Iran with military bases), it doesn't make all that much sense that Iran would want nukes just so that it can conduct a first strike against another nation.
Iran's mullahs may be hardliners, but they're not suicidal, considering the riches Iran sits on. That would contradict the logic of deterrence, just as our government's building up of further tactical nuclear weapons, and recent shipping of hundreds of such "bunker busters" to Israel, contradicts the logic of anti-proliferation that Iran and others are apparently supposed to abide by. Please.
http://informationclearinghouse.info/article12254.htm