Werner Scholem never took the easy path. Born in 1895 into the Berlin Jewish middle class, he married a young non-Jewish woman of proletarian background. He was the youngest member of the Prussian Parliament in the 1920s, one of the leaders of the German Communist Party, and the editor of the influential journal The Red Flag. As an outspoken critic of Stalin, he was soon expelled from the party, only to take up a position at the head of...