Air & Space/Smithsonian contributing editor Ed Darack’s forthcoming book, The Final Mission of Extortion 17 (Smithsonian Books, 2017), covers the story of the people and circumstances of Extortion 17 and its downing in Afghanistan in August 2011. The shootdown was the single deadliest incident in the war in Afghanistan. The book grew out of his article in the Feb./Mar. 2015 issue. See his website and Facebook page for more information.