Though never charged with a crime, Mohamedou Ould Slahi has been imprisoned at the Guantánamo Bay detention camp since 2002. His deeply personal diary—an unprecedented publishing event as the first ever book published by a still-imprisoned detainee—is a terrifying (and darkly humorous) chronicle of a vivid miscarriage of justice. To discuss the book and the case, longtime human rights activist and editor of Slahi’s book, Larry Siems, joins Slahi’s lawyer, Nancy Hollander, whose practice is devoted to criminal cases, including that of Chelsea E. Manning, involving national security issues.