Did you know ...

• the American mathematician Anna Johnson Pell Wheeler married a former professor, who was actually a Russian double agent named Sergei Degaev?
• Gunvald Tomstad, a double agent for Norwegian resistance in World War II, acted as a local "ideologist" of the Fascist party Nasjonal Samling?
• Arthur Owens, codenamed SNOW, was a vital double agent who supplied information to German intelligence under the direction of British MI5 during the early years of World War II?
• Renaissance composer, instrumentalist and copyist Pierre Alamire was also a spy for Henry VIII, until he was revealed as a double agent?