Ron has pointed out clearly the flaws in Teribus's argument, but I have never seen Teribus acknowledge any point of view which contradicts his own.
There is a possibility that all the factions in Iraq will embrace "democracy", setting aside their religious and historical differences and accepting a benevolent American presence in their country for the foreseeable future, but much more likely is the descent into civil war which is widely predicted.

If not civil war the country will surely become lawless, ruled by mad fundamentalists , warlords and private militias.

No matter what the pro-war people say, the intervention by USA/UK has made a bad situation many times worse , and we are still faced with the problem of making an organised withdrawal without too much loss of life.

This will not be easy and will of course be perceived as a humiliating defeat...but there will be no other way.

One positive point is that the endgame in Iraq will probably mean the end for the neo-con experiment in America...Ake