Ethics in combat

PBS has an interesting commentary on military ethics. It references a recent Pentagon report. There's also a discussion with military ethics expert Nancy Sherman. She says at one point: "It is hard to take the moral high road when you feel you're being betrayed, sometimes betrayed by the locals you're trying to help and sometimes just betrayed because you're not sure what the rules of engagement are at the moment: Am I a policeman or am I a soldier?"
On The Army Times Web site, Gen. David Petraeus, the top U.S. commander in Iraq, talks about his concerns about the Pentagon report's findings.