This is a very dangerous tactic:

With the four-month-old increase in American troops showing only modest success in curbing insurgent attacks, American commanders are turning to another strategy that they acknowledge is fraught with risk: arming Sunni Arab groups that have promised to fight militants linked with Al Qaeda who have been their allies in the past.

American commanders say they have successfully tested the strategy in Anbar Province west of Baghdad and have held talks with Sunni groups in at least four areas of central and north-central Iraq where the insurgency has been strong. In some cases, the American commanders say, the Sunni groups are suspected of involvement in past attacks on American troops or of having links to such groups. Some of these groups, they say, have been provided, usually through Iraqi military units allied with the Americans, with arms, ammunition, cash, fuel and supplies.

American officers who have engaged in what they call outreach to the Sunni groups say many of them have had past links to Al Qaeda in Mesopotamia but grew disillusioned with the Islamic militants’ extremist tactics, particularly suicide bombings that have killed thousands of Iraqi civilians. In exchange for American backing, these officials say, the Sunni groups have agreed to fight Al Qaeda and halt attacks on American units. Commanders who have undertaken these negotiations say that in some cases, Sunni groups have agreed to alert American troops to the location of roadside bombs and other lethal booby traps.

If we are going to these extremes then the “surge” is really failing. Glad we’re waiting until September to find out how it’s going now.