This fascinating book analyzes 13 control failures in human history, from Robespierre's promotion of the French Revolution, to Hoover's efforts to stop the Great Depression, to the intelligence failures of 9/11. Assessing the causes of 10 additional historical cases, the author's comparative analysis shows how each leadership failure was caused by an expansion of the range of control attempts, their scope, and/or their diversity. A leader's or other actor's attempts to broaden the range of control targets have been most important in causing great human failures. The analysis is timely during an era when war, global warming, and other vexing problems plague our society.