Iran is doing anything it can to distance itself from al-Qaeda and avoid the US wrath:

US forces have wiped out an alleged al-Qaeda-linked group in northern Iraq (news - web sites) with help from their Kurdish allies -- but also their Iranian foes who have sealed off the Islamist militants' only exit.

The US forces kept mum on the location of their hunting ground, but a Kurdish official said it was a mountainous region on the border with Iran because "they have nowhere else to go" after the Islamic Republic "closed its border."

All the villages along the wide road leading to the Iranian pass have been "cleaned up," he said.

I guess the ass whooping we're currently dropping on Iraq has awaken the Iranian regime to what could happen to the rest of the "Axis of Evil".