Ben Macintyre is a writer-at-large for The Times of London and the bestselling author of Operation Mincemeat, Agent Zigzag, The Napoleon of Crime, and Forgotten Fatherland, among other books. His latest book, Double Cross, goes on-sale July 31st (Crown).

Top Secret

When Al Qaeda was betrayed by a double agent in Yemen, it was the latest example of war’s most vital and treacherous tool: double agents. Ben Macintyre writes about the most famous successful such operation in history when the Allies fooled Hitler about the D-Day invasion. His new book, Double Cross, is out now.