Human Rights Watch, a highly respected non-partisan human rights group, published a detailed report identifying 38 people who were held in CIA black sites and are still missing. The report titled “Ghost Prisoner: Two Years in Secret CIA Detention,” includes a detailed description of a secret CIA prison given by a former detainee released from custody last year. In a letter to President Bush(pdf), HRW called on the President to account for the whereabouts of the "disappeared" prisoners. In its press release Joanne Mariner, the terrorism and counterterrorism director at Human Rights Watch, stated:
The CIA program – and the civilian leaders who created it – have inflicted tremendous harm on the reputation, moral standing, and integrity of the United States. It’s time for President Bush to repudiate this program, and to take steps to repair the damage it has done.See also this BBC report.
Take Action through Amnesty International, and through Human Rights First.