François Mitterrand took many secrets with him when he died 10 years ago, but now his most startling claim is revealed. John Follain reports It is May 7, 1982, shortly after 3.30pm. Ali Magoudi, a Parisian psychoanalyst, paces back and forth awaiting the secret arrival of his next patient — whose identity, if revealed, would set off an earthquake in French politics. The figure who enters, 45 minutes late, is François Mitterrand, no less — the president of France. Magoudi discovers that his patient does not want to talk about his childhood or his dreams, but about Margaret Thatcher and...