In the aftermath of World War II, two notorious Nazi villains were exposed in different ways. Adolf Eichmann was tried in Jerusalem in 1960, beginning the ''era of the witness'' in the prosecution of human rights abuses. Josef Mengele escaped Germany and lived out his life hidden in Argentina. After Mengele's death in 1985, his body was identified on an examining table in a morgue by a group of forensic scientists in Brazil. This book, based on a presentation by the authors, explores the emergence of the object in human rights, the conditions of its presentation, and the aesthetic operations involved in deciphering the ''speech of things.''