Ali Nori Nadir, a Sunni Kurdish interpreter, said those who have aided U.S. troops in Iraq are captured and killed under unknown conditions, and the government blames "insurgents" or "al Qaeda." (Photograph provided by Ali Nori Nadir)

Ali Nori Nadir, a Sunni Kurdish interpreter, said those who have aided U.S. troops in Iraq are captured and killed under unknown conditions, and the government blames "insurgents" or "al Qaeda." (Photograph provided by Ali Nori Nadir)