There is no scientific evidence that such coercion is better than any other kind of interrogation; it is probably worse. SERE techniques were not designed to be used in the real world; they were designed to test the psychic endurance of Air Force pilots. When the FBI sent some of its best counterterrorism agents to Guantanamo soon after the camps opened, the agents chose to use what is known as rapport-based interrogation, which apparently worked. The FBI agents found the coercive tactics used by military intelligence both disgusting and stupid: The abusive treatment instantly destabilized detainees, making the information they provided unreliable as intelligence and useless in court.
There is no purpose to their cruelty but cruelty.
NOT.IN.MY.NAME! :cry: