Question: Gerda Munsinger was dubbed "The Mata Hari of the Cold War", in reference to Margaretha Geertruida "Margreet" MacLeod who was convicted of being a spy for what country in World War I?
Sentence (from "Gerda Munsinger"): Munsinger was the central protagonist of the Munsinger Affair, the first national political sex scandal in Canada, and was dubbed "the Mata Hari of the Cold War" because of her involvement with several Canadian politicians.
Relevant evidence: Yes