The former head of the Pentagon program responsible for the investigation of UFOs--now known as Unidentified Anomalous Phenomena (UAP)--reveals long-hidden truths with profound implications for not only national security but our understanding of the universe. The stakes could not be higher. Imminent is a first-hand, revelatory account inside the Pentagon's most closely guarded secret and a call to action to confront humanity's greatest existential questions. 304 pages hc