Philip Alston, a United Nations human rights official, warned the U.S. Government in 2006 that he had received information indicating that Iraqi reports of American troops executing an Iraqi family were true. Five of the victims were children five years old or younger. According to Alston, the troops “entered the house [after a 25 minute gun battle], handcuffed all residents and executed all of them.” He noted that the troops attacked the house in part because they suspected that the family was involved in the killing of two American troops earlier in March, 2006. If this is true, both the vengeful attack and the subsequent investigation by the U.S. military, which concluded that the report of the execution was false, demonstrate what can go wrong when conflicts of interest are ignored.
The full essay is at "Human Rights in a Military Occupation."