For the next few years, the US Army, US Marine Corps, US Air Force and US Navy will assure that doesn't happen. We already saw Al Sadr get froggy and jump with his militia, trying to do just that. But you saw what happened to him. His militia became cannon fodder and he became irrelevent.
Ultimately, the fate of Iraq rests in the hands of the Iraqis. They have lived under a dictator long enough to know what that is. The majority of Iraqis don't want that. The fact that thousands continue to flock to recruiting centers to sign up for the Iraqi police and military is evidence of this, in spite of being targeted by the terrorists. These people believe in what we are trying to do. There is some dissention obviously, but the majority are on our side.
Iraq isn't and never will be a mini-America. Their culture is too different. But with a little luck, it will become one of the more open minded and free societies in that area of the world. And that alone is an accomplishment. I truly believe it will happen. It's going to take some time and more blood, sweat and tears to get there. But it can and I do believe will happen. That's a noble undertaking worthy of our support.