Leslie Kean, a veteran investigative reporter who has spent the past ten years studying the still-unexplained UFO phenomenon, reviewed hundreds of government documents, aviation reports, radar data, and case studies with corroborating physical evidence. She interviewed dozens of high-level officials and aviation witnesses from around the world. Among them, five Air Force generals and a host of high-level sources&;including Fife Symington III, former governor of Arizona, and Nick Pope, former head of the British Defence Ministry&;s UFO Investigative Unit&;have written their own breathtaking, firsthand accounts about UFO encounters and investigations exclusively for this book.