Host Meg Wolitzer presents two works about shifting identities. In “Voices”, by German writer Daniel Kehlmann, translated by Carol Brown Janeway, a computer technician’s mobile phone takes over his life—and not in the usual way. The reader is David Costabile. Writer Chika Unigwe sets a subtle story of social exploitation in the teeming city of Lagos. The reader is Yetide Badaki, who commented on the story during a backstage interview