Iran's current effort includes several research sites, a uranium mine, a nuclear reactor, and uranium processing facilities that include a uranium enrichment plant.
The Iranian government asserts that the program's goal is to develop nuclear power plants, and that it plans to use them to generate 6,000 MW of electricity by 2010
The U.S. and some other nations [Guess who] officials allege the program covers an attempt to acquire nuclear weapons.
As of October 2007, however, the IAEA has seen "no evidence" that this is the case.
I haven't the space to give details, but you can read an extraordinary amount of detail and commomn sense about the Iranian atomic programme here
That will be a very useful historical reference when we wake up after the nightmare and find out what Mr Brown and Mr Bush and Sarko the Sayan got us into.
But please note: The aerial photo of the Bushehr Atomic Plant above bears a remarkable resemblance to the Syrian building recently bombed by the Israelis.