America's Book of Secrets: Exposing Area 51's Undercover Operations (Part 2) | History

Transcript

workers at the base typically have a top secret clearance but access within each project is strictly compartmentalized it's on a need to know basis it is a base of compartmentalized strangers when classified Northrop aircraft is tested at Area 51 people who work in the lock heat Skunk Works laboratory are told to bring the shades down and never to ... Read More