What is the author's tone in They Called Themselves the K.K.K.: The Birth of an American Terrorist Group by Susan Campbell Bartoletti?

While the reader can tell simply by the facts that the author is giving us that she is not in favor of terrorist groups, Bartoletti seems careful to give us the facts without personal commentary. The author gives plenty of stories which show the Klan for what they are. Not only does the Klan bully the blacks but they bully their own members. It would seem that it would have been difficult not to react to some of the illustrations and stories. The author is more than fair. She doesn't say much about the trials of the Klan and one would think a whole book could have been written about those and their effectiveness. She would make the ideal reporter. She wouldn't give it a slant. One believes that she simply wants the truth.