The story of David Petraeus is one of success and downfall. Rising through ranks of the U.S. Army, he was promoted rapidly to Commander of United States Central Command in 2008, and Commander of International Security Assistance Force in 2010. After retiring from the army in 2011, he was tapped by Barack Obama to be the Director of the Central Intelligence Agency. An extramarital affair forced Petraeus to resign his post the following year. This book...