I heard this story on NPR Friday morning.
If you click the first LISTEN button on the page - obviously don't do this at work.
At 2:30 in, Steve Inskeep sums up why the surge and our continued presence is going on in Iraq: To allow the govt. to work out their differences and solidify the govt. Is it working?
The answer: "The Iraqi Parliament met for three days this week. They are still debating whether they should take two months off at the beginning of July, as opposed to a month off."