Iran supplying IEDs to Shiite Terrorists

NY Times: "In interviews, civilian and military officials from a broad range of government agencies provided specific details to support what until now has been a more generally worded claim, in a new National Intelligence Estimate, that Iran is providing “lethal support” to Shiite militants in Iraq.

The focus of American concern is known as an “explosively formed penetrator,” a particularly deadly type of roadside bomb being used by Shiite groups in attacks on American troops in Iraq. Attacks using the device have doubled in the past year, and have prompted increasing concern among military officers. In the last three months of 2006, attacks using the weapons accounted for a significant portion of Americans killed and wounded in Iraq, though less than a quarter of the total, military officials say.

Because the weapon can be fired from roadsides and is favored by Shiite militias, it has become a serious threat in Baghdad. Only a small fraction of the roadside bombs used in Iraq are explosively formed penetrators. But the device produces more casualties per attack than other types of roadside bombs.

Any assertion of an Iranian contribution to attacks on Americans in Iraq is both politically and diplomatically volatile. The officials said they were willing to discuss the issue to respond to what they described as an increasingly worrisome threat to American forces in Iraq, and were not trying to lay the basis for an American attack on Iran.

The assessment was described in interviews over the past several weeks with American officials, including some whose agencies have previously been skeptical about the significance of Iran’s role in Iraq. Administration officials said they recognized that intelligence failures related to prewar American claims about Iraq’s weapons arsenal could make critics skeptical about the American claims.

The link that American intelligence has drawn to Iran is based on a number of factors, including an analysis of captured devices, examination of debris after attacks, and intelligence on training of Shiite militants in Iran and in Iraq by the Iranian Revolutionary Guard and by Hezbollah militants believed to be working at the behest of Tehran.
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It is the most effective I.E.D out there,” said Lt. Col. James Danna, who led the Second Battalion, Sixth Infantry Regiment in Baghdad last year, referring to improvised explosive devices, as the roadside bombs are known by the American military. “To me it is a political weapon. There are not a lot of them out there, but every time we crack down on the Shia militias that weapon comes out. They want to keep us on our bases, keep us out of their neighborhoods and prevent us from doing our main mission, which is protecting vulnerable portions of the population.”
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To make the weapon, a metal cylinder is filled with powerful explosives. A metal concave disk manufactured on a special press is fixed to the firing end.

Several of the cylinders are often grouped together in an array. The weapon is generally triggered when American vehicles drive by an infrared sensor, which operates on the same principle as a garage door opener. The sensor is impervious to the electronic jamming the American military uses to try to block other remote-control attacks.

When an American vehicle crosses the beam, the explosives in the cylinders are detonated, hurling their metal lids at targets at a tremendous speed. The metal changes shape in flight, forming into a slug that penetrate many types of armor.

In planning their attacks, Shiite militias have taken advantage of the tactics employed by American forces in Baghdad. To reduce the threat from suicide car bombs and minimize the risk of inadvertently killing Iraqi civilians, American patrols and convoys have been instructed to keep their distance from civilian traffic. But that has made it easier for the Shiite militias to attack American vehicles. When they see American vehicles approaching, they activate the infrared sensors.

According to American intelligence agencies, the Iranians are also believed to have provided Shiite militants with rocket-propelled grenades, shoulder-fired antiaircraft missiles, mortars, 122-millimeter rockets and TNT.
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Marine officials say that weapons have not been found in the Sunni-dominated Anbar Province, adding to the view that the device is an Iranian-supplied and Shiite-employed weapon."

I will take this occasion to applaud the Times for a well written article, and a quality piece of journalism.
Is this a suprise? Iran giving weapons to terrorists to kill US troops. No, but I thought I'd post it anyways.
The real question: What should the US response be?