Iraq has launched an investigation into claims by the US military that an Iraqi interior ministry "death squad" has been targeting Sunni Arab Iraqis.
The probe comes after a US general revealed the arrest of 22 policemen allegedly on a mission to kill a Sunni.
"We have found one of the death squads. They are part of the police force," US Maj Gen Joseph Peterson said.
Sunnis have long accused Iraqi forces of operating death squads - but the claims have never been substantiated.
Iraqi deputy interior minister Maj Gen Hussein Kamal said his ministry had set up an inquiry.
I suppose it would be churlish of me to suggest that the imperial headaches involved with sponsoring one set of Iraqis among several mutually-hostile ones, or (alternatively) sorting out the "good" from the "bad" Iraqis, was terribly, terribly unnecessary from the U.S. point of view. We could always have stayed home and minded our own proper business -- of which there is lots.
But where's the fun in that?