Remember this:

President Bush laid down the standard of success when he announced the surge more than a year ago: "If we increase our support at this crucial moment, and help the Iraqis break the current cycle of violence, we can hasten the day our troops begin coming home."

Than yesterday we get this:

May Spell Trouble

As Iraqis who fled their homes during the war begin to return, some are finding it safer to move into areas inhabited by other members of their sect, creating segregated communities of Shia and Sunni Muslims at ever-increasing rates.
The country has seen a drop in sectarian violence as a result, but some observers are concerned by the trend's other possible consequences.