(CNN)Here's some background information about the US Senate Select Committee on Intelligence's report on the CIA and its detention and interrogation program.
The report is the result of an investigation into six years of detention and "enhanced interrogation techniques" used by the CIA against suspected terrorists in secret sites around the world.
119 detainees were held at CIA sites between 2002 and 2008. This is 20 more than previously reported by the CIA.
CIA Director John Brennan - "It is our considered view that the detainees who were subjected to enhanced interrogation techniques provided information that was useful and was used in the ultimate operation to go against Bin Laden."