Guantnamo Diary ... in which Guantanamo detainee Mohamedou Ould Slahi tells of his odyssey through overseas prisons and his torture and abuse by the US and its counterterrorism allies, is pockmarked with redactions left by military censors. The diary was finally published last week. Slahi, a 44-year-old Mauritanian educated in Germany, was rendered by the CIA to prison in Jordan in late 2001, then held by the U.S. in Afghanistan and Guantanamo. The U.S. has never charged him with a crime. By the time the editor Larry Siems got hold of the manuscript in 2012, volumes of information about Slahis case had come into the public record. In 2006, the government released transcripts from hearings evaluating prisoners detention status, Slahis among them. Reports from the Justice Department and the Senate Armed Services Committee detailed his interrogation. Siems was able to cross-reference these materials to establish the chronology of Slahis narrative, in which all dates have been redacted. Journalists have not been allowed to speak directly to current detainees. For Larry Siems, censorship is at the core of Slahis story, and while the redactions sometimes impede his narrative, they serve a literary function as well. Secrecy was imposed in order for abuse to happen, and then more secrecy was imposed in order to cover it up, said Siems. The redactions are like the fingerprints of that longstanding censorship regime.