THE war has died down in Iraq, and Nur probably vanished from our memory. She was only 12. Her plait held with a red hair band. She was laid out for a few hours at the Kindi Hospital. Beside her, Kadir, her younger brother, a child of 5 in a checkered shirt. They were both children of the Sabah family from Baladiyat district in East Baghdad. That morning, a neighbor said, a rocket was fired from a low-lying American plane. The rocket explode