http://wpherald.com/articles/3036/1/US-buildup-in-Gulf-to-counter-fears-over-Iran/Not-a-first-step-toward-war.html<snip>
Some in the Pentagon think Iran is at war with the U.S., using Shi'ite militia proxies to attack American service members. Iran's al-Quds, a special-operations arm of the regime's Revolutionary Guards, is supplying the Iraqis with weapons, money and training, U.S. officials said.
Because war with Iran was not an option on the table, the sources said, the next best move was to begin capturing Iranians.
"I think the message that the president sent clearly is that we do not want them doing what they can to try to destabilize the situation inside Iraq," Mr. Cheney said. "We think it's very important that they keep their folks at home."
A defense source said the administration, after months of intelligence assessments, has concluded that Iran's intervention in Iraq was based on decisions made at the highest governmental levels in Tehran and not a rogue operation.