On December 28, 2013, The New York Times published a thoroughly researched review of the September 11, 2012 attacks on the American diplomatic and CIA facilities in the city of Benghazi. David Kirkpatrick, The Times’ Cairo bureau chief, traveled to Libya and personally conducted a series of interviews with witnesses and even the relatives of suspects in that attack. His exhaustive account of the events on that night was illuminating, but his conclusions about what sparked that deadly attack made the most waves. Kirkpatrick found that there was “no evidence that al Qaeda or other international terrorist groups had...