I found this article today, it was written by David Ignatius in the washington post more than 6 months ago.
The American plan now, apparently, is to extend the Anbar model and create "bottom-up" solutions throughout Iraq. For example, I'm told that U.S. commanders met recently with the Shiite political organization known as the Supreme Islamic Iraqi Council and gave a green light for its Badr Organization militia to control security in Nasiriyah and some other areas in southern Iraq and thereby check the power of Moqtada al-Sadr's Mahdi Army. We're interposing ourselves here in an intra-Shiite battle we barely understand.