The idea of Errol Morris interviewing another Secretary of Defense looks like another surefire hit (the first was Robert McNamara in the impossibly-great Fog of War). If you are going in expecting Fog of War, you’ll be pleasantly surprised that it’s nothing like it. Morris is more combative and former Secretary of Defense Donald Rumsfeld is a worthy adversary. It is equal parts frustrating and enthralling to watch Morris try to get a genuine answer out of Rumsfeld, only to be rebuffed every time.