The United Nations is heading rights groups calling for CIA and other US government officials to be prosecuted for their role in the "enhanced interrogation" of suspects at secret prisons around the world.
A long awaited-report into CIA detention and interrogation tactics has painted a bleak picture of US torture and abuse.
It talks of brutalising scores of so-called terror suspects under President George Bush.
The Senate Intelligence Committee spent five years analysing more than six million pages of CIA documents, detailing tactics used after the September 11, 2001, attacks.
A 525-page summary paints a picture of the CIA as an agency gone rogue.
It accuses the CIA of subjecting suspects to beatings, simulated drowning, sleep deprivation, and threatening to harm, kill or sexually abuse their families.
The report said the CIA misled the White House, Congress and other agencies to maintain a programme that had little oversight, and information obtained from suspects failed to provide any useful intelligence.
So where does the buck stop? And who should be held responsible?
Robert Grenier - former Director of the CIA's counterterrorism centre.
Moazzam Begg - Outreach Director of rights group CagePrisoners and former Guantanamo detainee.
Clare Algar - Executive Director of human-rights group Reprieve.
Source: Al Jazeera