Actually I think it was a necessary question, and the answer was intended to reassure Americans that the Iraqis are willing to kill their own countrymen to defend democracy. There were the cases in Fallujah and Najaf where the Iraqi police have deserted when ordered to fight al-Sadr's militia.
U.S. General: Iraq Police Training a Flop
It was wise of al-Yawer to state explicitly that the Iraqi government is committed to doing whatever it takes.