The novelist Milan Kundera left Czechoslovakia in 1975. He and his wife had gone to France for what was supposed to be a short stint at a university, and they did not go back. The communist government revoked Kundera’s citizenship in 1979, and since then he has scarcely returned to his homeland, even after the fall of the Iron Curtain. But after 40 years, the author is a Czech citizen once more. Czech ambassador to France Petr Drulak went to Kundera’s Paris apartment last week and handed him a citizenship certificate.