A few hours ago, the administration finally released some of the intelligence on Iranian actions to make war on the United States in Iraq. It was done in a briefing by a senior intelligence officer who declined to be identified by name. The Associate Press, through Fox News, reports some of the details (italics mine):

The U.S. military has detected a significant increase in the number of sophisticated roadside bombs in Iraq and believes orders to send components for them came from the “highest levels” of the Iranian government, a senior intelligence officer said Sunday, the same day more than 30 people including a U.S. soldier were killed in Iraq violence. … The officer, briefing reporters on condition he not be further identified, that that between June 2004 and last week, more than 170 Americans had been killed by the sophisticated bombs, referred to by the military as “explosively formed projectiles.” Those weapons are capable of destroying an Abrams tank.The officer said American intelligence analysts believe the EFPs are manufactured in Iran and smuggled into Iraq on orders from the top of the Iranian government. He did not elaborate. U.S. officials have alleged for years that weapons were entering the country from Iran but had stopped short of alleging involvement by top Iranian leaders….During the briefing, the officer said that one of the six Iranians detained in January in the northern city of Irbil was the operational commander of the Quds Brigade, a unit of the Iranian Revolutionary Guards that trains and equips Shiite militants abroad. He was identified as Mohsin Chizari, who was apprehended after slipping back into Iraq after a 10-month absence, the officer said.The Iranians were caught trying to flush documents down the toilet, he said. They had also tried to change their appearance because bags of their hair were found during the raid, he added.