Patrick at Kings of War plugs his eventual book while discussing the problems with the U.S. military assumption that concepts of honor and compensation after family members are killed by coalition forces is somehow exotic or uniquely "Arab".  While how these concepts work in Iraq may be different than in the United States, he brings up a valid point: when a family member is killed by trigger happy goons in the pay of a foreign power, how many Americans would be satisfied by a nominal cash pay-off without, with no apology or promise to do better.  With no recourse to law, we're likely to take things into our own hands, and play it off as justice done, or reference it back to the mythical "Wild West".