Q&A: A Spy Revealed - Cambridge academic Christopher Andrew explains how Melita Norwood - alias Hola - became one of the KGB's most highly rated spies. From the BBC, September 11, 1999.
UK Government Communications Headquarters - intelligence gathering agency that is charged with helping safeguard the nation's security, economic well-being and to protect it against serious crime.
Economic & Industrial Espionage - transcript of a speech by Frank J. Cilluffo to the World Economic Forum's 1998 Annual Meeting.