The Pentagon’s Brain: An Uncensored History of DARPA, America’s Top-Secret Military Research Agency, is original, provocative, and unforgettable. Starting with the nuclear device Castle Bravo, to the biomedical engineering of limb regeneration, Annie Jacobsen takes us behind-the-scenes to show what military technology is really doing. As a history book, this book was far from boring. Jacobsen’s writing is fluid and nothing like the writing in textbooks. The topics outlined in the book are very interesting and sometimes altogether shocking. However, given Jacobsen’s reputation, some scenes, I felt, strayed a bit far from reality. While most of the facts were taken from many sources, some “facts” only came from one source. All in all, whether you take it as fact or fiction, The Pentagon’s Brain is a very enjoyable ride.