Iran can prove they are not developing or they do not have nuclear weapons. Iraq didn't have WMD's but our Govt and intelligence agencies just fabricated lies and fabricated evidence that "proved" otherwise.
The only way for Iran to appease our demands is for them to turn over their natural resources to western corporations and for them to let us choose their leaders. THAT is the goal. The neocons in the PNAC documents and Brzezinski in the "The Grand Chessboard" state this openly:
1) control of mideast and central asian natural resources
2) regime change (including regime change in Russia and China!)
This is no secret. The rest of the world reads the writings of our leaders.
~wobbles but doesn't fall down~