Showdown With IranAs the United States and Iran are locked in a battle for power and influence across the Middle East - with the fear of an Iranian nuclear weapon looming in the background - Frontline gains unprecedented access to Iranian hard-liners shaping government policy, including parliament leader Hamid Reza Hajibabaei, National Security Council member Mohammad Jafari and state newspaper editor Hossein Shariatmadari.

This report focuses on the tumultuous U.S.-Iran relations since 9/11,and examines how U.S. efforts to install democracy in Iraq have served to strengthen Iran's position as an emerging power in the Middle East.

You will not find a single instance in which a country has inflicted harm on us and we have left it without a response. So if the United States makes such a mistake, they should know that we will definitely respond. And we don't make idle threats, Mohammad Jafari tells in his first-ever television interview.

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