What we need to do in Iraq is not politically viable.
We need to go in there with overwhelming force (because THAT is what the arabs understand) and absolutely CRUSH the insurgency.
We should hermetically seal the borders (Syria and Iran) and interdict both weapons and PAX.
That's the problem, now, isn't it?
"Not politically viable" cuts both ways, of course. But what's closer to being politically viable: Taking the gloves off, or cutting and running?