Hitler imprisoned a German pastor, Martin Niemoeller, for eight years. He spent some time in prisons and concentration camps, including Dachau. Hitler realised that if Niemoeller, a First World War hero, could be persuaded to join his cause then much opposition would collapse, so he sent a former friend of Niemoeller to visit him, a friend who now supported the Nazis. Seeing Niemoeller in his cell, the one time friend is
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