This discovery throws new stain on the already shaken reputation of the CIA, and once again raises the issue of torture that was carried out against political prisoners. The controversial document from 1987 empowers the Director of the Agency to approve, modify or deny proposals on experimenting on the people.

The document was amended in 2003, when George W. Bush approved the use of "enhanced interrogation techniques", which are actually just fine name for the brutal methods of torture. However, the paragraph of the unlimited powers of the Director of the Agency was classified as "state secret" and therefore was unavailable to the public, until now.

Only one signature of the director George Tenet was needed for the approval of various medical experiments and torture techniques, designed by psychologists from the CIA.

To make things worse, Tenet issued a direct order to the medical staff to "turn a blind eye to all the techniques of brutal interrogation and torture of prisoners," which included drowning, sleep deprivation and rectal feeding. Although US law prohibits experimentation on humans without their permission, this document proves that this law does not apply to CIA.

This practice was especially intensified after the 9/11 attacks in 2001. In those days, the CIA mass-arrested "suspects" around the world and subjected them to horrific methods of testing, all under the pretext of "fighting terrorism".