"In Sadr City, medical services historically were provided by Shiite militias. The military hopes providing treatment will turn support in U.S. favor."

Why on earth would you replace existing medical services when you could go to an area (like a Sunni stronghold) that has no medical services? The citizens of Sadr City are Sadrists regardless of who provides the medical care. This is PR for the American public.

Support for the U.S. will have to come from Sunnis who are attacking both U.S. troops and Iraqi civilians. Shia support will not end the insurgency. The Shiites already support the Iraqi government.

Winning the hearts and minds of Sadrists is an exercise in futility. They will support the Iraqi govt. but never the U.S. infidels. Haven't you learned anything?