During Anderson Cooper's interview with President Barack Obama, he brought up recently revealed evidence that the Bush administration had resisted investigating the potential war crimes of an Afghan warlord who was a U.S. ally and on the CIA payroll. Cooper asked Obama if he supported a war crimes investigation in light of this new knowledge.
Obama would not categorically rule out such a probe, but was very cautious in his wording, making no commitment either way and saying his national security team needed more time to gather all the facts. He did state that all nations have "responsibilities," even in war, and that "If it appears that our conduct in some way supported violations of the laws of war, then I think that we have to know about it."
The indications that this had not been properly investigated just recently was brought to my attention, so what I've asked my national security team to do is to collect that facts for me that are known and we'll probably make a decision in terms of how to approach it once we have all the facts together though
I think there are responsibilities that all nations have even in war. If it appears that our conduct in some way supported violations of the laws of war, then I think that we have to know about it.