They (the commie-led "anti-war" movement) are simply doing what Russia wants them to do, as they have always done. Russia did not want a US-allied Iraq, and they certainly do not want a weakened or defeated Iran, who they are allied with. In fact, Ahmadinejad sounds a lot more like a radical leftist than a religious fanatic. Check out his language in this CBS-News excerpt from 2006 (i.e., 'progressive', 'imperialism', 'revolutionary') I think this guy is a puppet of Moscow, and that the Russians were probably behind the 1979 Iranian revolution which ousted a US-friendly government.
From CBSNews.com, July 29, 2006:
"Chavez pledged that his country would 'stay by Iran at any time and under any condition,' state television reported. Ahmadinejad said he saw in Chavez a kindred spirit." "'We do not have any limitation in cooperation,' Ahmadinejad was quoted as saying. 'Iran and Venezuela are next to each other and supporters of each other. Chavez is a source of a progressive and revolutionary current in South America and his stance in restricting imperialism is tangible.'":
http://www.cbsnews.com/stories/2006/07/29/world/main1847331.shtml
Russia and China, as well as the international communist movement over all (Chavez and other Latin American countries included), are making major comebacks on the global stage. My suspicion is that the comeback was thrust into high gear with the 911 attacks. Further, that Russia was, in some way, behind the 911 attacks, perhaps somehow encouraging the Islamo nutcases (al qaeda) to do their dirty work for them. The take-out of the World Trade Center was a major victory for the anti-Capitalists.