Four letters, starts with Ira

When I saw on the news that Colin Powell was claiming a Middle Eastern country was trying to go nuclear and backing up his claims with testimony by exiles from that country, I thought to myself, 'Didn't we already go through this once?' Well, here we go again:

The United States has intelligence that Iran is working to adapt missiles to deliver a nuclear weapon, further evidence that the Islamic republic is determined to acquire a nuclear bomb, Secretary of State Colin L. Powell said Wednesday.

Separately, an Iranian opposition exile group charged in Paris that Iran is enriching uranium at a secret military facility unknown to U.N. weapons inspectors. Iran has denied seeking to build nuclear weapons.

Four more wars.