What is the author's tone in Metal Men: Marc Rich and the 10-billion-dollar Scam by A. Craig Copetas?

"Metal Men," is the story of one of the most notorious white-collar criminals in the history of the United States. The account is told in a detailed, informative and non-judgmental manner. Author Copetas brings clarity to the murky world of metals trading, a world about which most people know little. By providing the background, operations and ethics, or lack thereof, of the metals trading world, he sets the stage for the entry of Marc Rich who contained the perfect skill set to make it in that market. However, in the end, his genius went into over-drive and brought discredit to the entire industry.