Every nation argues about its own history, seeking to find glory and a sense of identity by celebrating its heroes while downplaying the dark side of the past. Nations also argue with each other about the past, with one side's glorious victory still rankling as the other's ignominious defeat. And, frequently, a neighboring country that has been harmed by another's actions complains that the guilty nation is whitewashing the worst incidents. Currently, an attempt to normalize relations between Turkey and Armenia is proving a tough sell due to arguments about a mass slaughter that occurred more than 90 years ago. And Russia and its neighbors are engaged in heated debates about revealing the crimes of the Stalinist era. Like individuals, nations need to confront their own ghosts, but finding the balance between acknowledging past wrongdoing and learning to get along in the present can be a difficult feat. Such conflicts raise a fundamental philosophical question: Is historical accountability a human right?