Somewhere the nation slipped its leash.
Yup, and I can tell you exactly where -
We completely lost our moral bearings when the Religious Right decided that they had a monopoly on morality.
Now we are in a Holy War because Jesus is apparently a person friend of W's and really wanted us to attack Iraq.
When one side of a conflict is completely and absolutely 100% morally justified and right and fighting for God's side etc (Us), then whatever we do to the evil, bad, amoral, wrong, Godless enemy (them) is justified.
Unfortunately, this statement is true even when we switch who's on which side.