Remember that horrible Blackwater shooting in Iraq where guards mowed down 17 unarmed Iraqis in a crowded square? Well a judge has thrown the case out because the State Department personnel who first interviewed the guards promised them immunity in exchange for their testimony, despite the fact that they had no authority to do so. Bottom line: this is why you don’t fight wars with mercenaries.
If you knew the kind of people who go to work for Blackwater it would horrify you that we send we give them guns and send them into foreign countries with no legal mechanism in place for punishing misconduct.