When Aliens Attack

Self - Theoretical Physicist (archive footage)

Self - Author, Emergency

Self - U.K. Ministry of Defense

Self - Author: Adventures Among Ants

Self - Washington State University

Self - Director of Defense Studies, West Point

Self - USAF Air Command and Staff College

Self - Physicist & Author

Self - Co-Author, Alien Invasion: How to Defend Earth

Self - Author, Live Free or Die