Damian Lewis: Spy Wars | The Perfect Traitor | HISTORY UK

This is the story of Robert Hanssen - a former FBI agent who systematically dismantled the United States’ network of undercover Soviet agents, from the inside out. His espionage was described by the Department of Justice as "possibly the worst intelligence disaster in U.S. history”. Find out more: https://www.history.co.uk Subscribe to our YouTube channel: https://www.youtube.com/historyuk Follow HISTORY on social media: http://facebook.com/historyuk http://twitter.com/historyuk https://instagram.com/historyuk