There is no other example which better illustrates the deplorable effects of systematic torture than the witch hunts that took place in Europe and America.
The parallels to our modern use of torture in the WOT are pretty clear.
Both were launched in times of a certain heightened public hysteria. Both essentially assume rather than establish the guilt of the victim. Both used/use violence and cuelty to extract information which is not accurate and establish false guilt. Both result in the naming of more and more falsely accused to be rounded up for torture and false accusation of others, providing an ever growing number of suspects. Both by their nature breed additional hysteria as they provide the practicioners an excuse/”need” to expand their “investigations”.