France is reeling from claims and revelations of incest. It began with a book by the sister of an alleged victim – her own twin brother – abused sexually throughout his teens by his stepfather, political scientist Olivier Duhamel. Camille Kouchner's book "La familia grande" has blown the lid off a massive social problem. What happened to her brother is classified as incest in France. In other countries it would be called child sex abuse – all the more damaging because it is perpetrated by a person in loco parentis.