Dr. Newman served in Army Intelligence in Thailand, the Philippines, Japan, and China. He served as an attaché in China. He served as the Military Assistant to the director of the National Security Agency (NSA). He was a faculty member of the University of Maryland, Honors College (1992-2012), and is currently Adjunct Professor of Political Science at James Madison University, where he teaches courses in International Terrorism, Counterterrosm, and America in the 60s.

Dr. Newman was a consultant for Oliver Stone's film JFK.  He was one of the experts called upon to testify the U.S. House of Representatives.  He was asked to assist the JFK Assassination Records Review Board. He has been a critic of the 9/11 Commission Report. Newman is the author of "JFK and Vietnam: Deception, Intrigue, and the Struggle for Power"(1992; 2017); "Oswald and the CIA: The Documented Truth About the Unknown Relationship Between the U.S. Government and the Alleged Killer of JFK" (1995;2008); "Quest for the Kingdom: The Secret Teachings of Jesus in the Light of Yogic Mysticism" (2013); "Where Angels Tread Lightly: The Assassination of President Kennedy, Volume I" (2015); and "Countdown to Darkness: The Assassination of President Kennedy, Volume II (2017).