Critics who still believe torture is effective and necessary, who ironically include religious conservatives, may want to consider the work of monsters like Dr. Eduard Wirths and Dr. Shiro Ishii. Although the experiments of both serial killer physicians offered beneficial insights to the field of medicine, as well as national defense, only the deranged would support the way in which that information was obtained.
Like the CIA torture programs, any benefits derived could have been gathered in an alternative manner.
The 9/11 terrorist attacks gave some in the CIA an opportunity to indulge their darkest fantasies. Consequently, the CIA needs to take this opportunity as an institution to rebuild and reflect. It needs to eliminate those who seek to do harm rather than good, so it can help secure America, instead of making us less secure.