William Doyle is the coauthor, with former US Navy SEAL Chris Kyle, of American Gun: A History of the US in Ten Firearms. His other books include A Soldier’s Dream: Captain Travis Patriquin and the Awakening of Iraq, An American Insurrection, Inside the Oval Office, and A Mission from God (with James Meredith). He served as director of original programming for HBO, and he is co-producer of the PBS special Navy SEALs: Their Untold Story.