These are scarcely people you want to integrate into a national force. This would simply create sectarian or ethnic forces or divisions within the forces that already exist.
The reality is that if the Shi'ites and Kurds can be inclusive and if they can reach a settlement with most of the Iraqi Sunnis, then the efforts of U.S. and coalition forces and the growing Iraqi forces are almost certain to be successful,
The best thing we can do is to make sure that our training helps them to create truly national military forces and truly national police forces because that then takes away any sense that one needs militias to provide security.
How much of the battle space can the Iraqi forces take over, and who is actually doing the fighting - those are the key measurements. The measure cannot be the elimination of the insurgency, as desirable as that would be. You cannot eliminate all of the bombings.