Indeed as did the Nazis. The law you speak of is a construct of the state, used to justify atrocities. It has already been well established by several war crimes courts that following orders and acting within the laws of the state is not an excuse for crimes. Do we excuse child molesters if their actions are not taken with malice? There is an argument that can be made for malice being used to increase a criminals punishment, but the lack of malice is not an excuse for crime. Many people think that child molestation is right. Does that excuse those who commit the crime? Of course not. It doesn't matter how many people think something is right. Additionally, see my above reply for my thoughts on the law. As for three and four (the only points I agree with in regards to the assessment of criminality), drug enforcement agents are guilty of actions which fall under both (causing direct harm to innocents, not following the non-aggression principle).