An example is a German pilot who got shot down, bailed out, and captured by the Soviet Army. He had been flying a Me 109, but the Soviets found out he had been checked out in, and operated the Me 262 jet. They started applying advanced interrogation techniques on him to learn about the plane.
He told them he could tell them how to advance the throttles, or where the arming button for the guns is located, but he explained he was a jockey, not a veterinarian. Willy Messerschmidt was not allowed to go anywhere close to being captured. Further interrogation of the pilot was just a waste of time.
Then came the hot Korean conflict. POW’s were interrogated by the North Koreans long after they could have any useful information. Some were physically tortured, some of them succumbed to the pain and broke, some did not, but there was also a new technique employed, and it took time.
Put into a dark box, not large enough to even stretch out, it is called sensory deprivation, and along with other enhancements, it turns a person insane, malleable, and open to the ridiculous suggestions. Like confessing to the war crime of being ordered to bomb hospitals and orphanages, and in doing so.
Some of those who broke under this new kind of interrogation feared to be repatriated, thinking they would be tried for collaboration upon their return. American psychologists and psychiatrists, after interviewing some of these ex-POW’s, determined that, given enough time, anyone, if not everyone, could be broken.
The US military had to change the code of conduct, and they did. Now that code includes the addition that if a soldier is broken, and signs junk, he/she is not permanently broken. The soldier, once the interrogation results are rewarded, gets the ability to gather him/herself, and resist again. The interrogators must start all over.John McCain made them start all over on him sometimes, until his Vietnamese interrogators finally gave up, and threw him into a miserable cell, and not back into his horribly, miserable dark box. His conduct, during his interrogation period, and after that, was nothing short of heroic.
People who say McCain was a traitor, should be subjected to some enhanced interrogation techniques, which won’t leave a mark on their bodies, but it will undoubtedly change their already feeble minds.
Some interesting books about John McCain