Getting serious

It's the Rules of Engagement, stupid! It has been for a while now and will be for quite a while longer:

The Bush administration has authorized the U.S. military to kill or capture Iranian operatives inside Iraq as part of an aggressive new strategy to weaken Tehran's influence across the Middle East and compel it to give up its nuclear program, according to government and counterterrorism officials with direct knowledge of the effort.

For more than a year, U.S. forces in Iraq have secretly detained dozens of suspected Iranian agents, holding them for three to four days at a time. The "catch and release" policy was designed to avoid escalating tensions with Iran and yet intimidate its emissaries. U.S. forces collected DNA samples from some of the Iranians without their knowledge, subjected others to retina scans, and fingerprinted and photographed all of them before letting them go.