Is your partner cheating on you with an A.I. companion? As Flora Gill tells us this week, many people, in search of physical and emotional intimacy, are increasingly turning to what are known as “A.I.-companion sites.” Then Alyssa Choiniere takes us inside the protests at Columbia University and tells us where this all might be headed. And finally, John Arlidge joins us from London with a new look at an extraordinary scandal. Ten years ago, high-profile members of the British Establishment—including a former prime minister—were falsely accused of sexually abusing children. In the effort to discover the truth, however, the country tore itself apart.