In April 2011, the ACLU filed a Freedom of Information Act request seeking a narrow yet critically important set of government documents: internal CIA reports detailing the use of unauthorized interrogation techniques at its secret overseas prisons, also known as “black sites” (you can read the request here). Investigative news coverage and earlier FOIA requests had alerted us to the potential existence of many such reports. Most notably, in August 2009 – in connection with a separate ACLU FOIA request – the government had released a partially-redacted version of one report, the Special Review: Counterterrorism Detention and Interrogation Activities (September 2001–October 2003).
Source: ACLU. Read full article. (link)