The book is stronger in the first half, detailing how the use of torture ("Enhanced Interrogation Techniques") came about and how the Bush administration sought to justify it. The unraveling begins as the author tries to draw the line from the Bush to the Obama administration. Writing on the tactic which succeeded torture, drone warfare, the author never finds a point of focus, and instead casts the net too wide, opining on foreign policy, counter-terrorism, and political optics. The important points aren't altogether lost, but the section on the second stage of the War on Terror is lacking in detail and substance.