Avraham Marek Klingberg (7 October 1918 – 30 November 2015), known as Marcus A. Klingberg, was an Israeli scientist and the highest ranking Soviet spy ever caught in Israel. The case of Klingberg is regarded one of the most destructive spy scandals in the history of the State of Israel.Klingberg was born in Warsaw, Poland, in 1918, to a Hasidic Jewish family of rabbinical lineage. In his youth, he lived for a time with his grandfather, Rabbi Moshe Chaim Klingberg. His parents sent him to a cheder, or Jewish religious school. As a teenager, he turned his back on religious life and enrolled in a regular high school. Wikipedia
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