Well, Iraq has sort of decided on a constitution, though it's a long way from being formally adopted. For one thing, my fellow Sunnis are refusing to accept it, probably because it fails to call for my return to power.
Granted, the Sunnis are a minority in Iraq, and some people will argue that for that reason the Sunnis should be kept to a minor role in any new national government. On the other hand, they have been in power for so long that they are not about to surrender it now.... Especially to a bunch of stinkin' Shiites.
So the fact remains that no national government can be formed without significant Sunni participation. On the other hand, the stinkin' Shiites will scream that no national government can be formed without them, since they are the majority of the population.
Quite a pickle, eh? Well, it seems that the only fair and equitable way to settle this little quandry is through a civil war.