One of the reasons for the success of the surge in Baghdad was the construction of blast walls that separated Sunni and Shia neighborhoods. These walls gave a certain level of security to both sides who had been ravaged by sectarian violence for months.The walls come a tumblin' down. ..Market by market, square by square, the walls are beginning to come down. The miles of hulking blast walls, ugly but effective, were installed as a central feature of the surge of American troops to stop neighbors from killing one another."They protected against car bombs and drive-by attacks," said Adnan, 39, a vegetable seller in the once violent neighborhood of Dora, who argues that the walls now block the markets and the commerce that Baghdad needs to thrive. "Now it is safe."Slowly, and not without some fear, the Iraqis are beginning the process of taking responsibility for their own internal security:On Oct. 1, the Sunni-dominated Awakening movement, widely credited with...(Read Full Post)