This may be the one you are looking for:::::::::
By the end of the Korean War, 70 percent of the 7,190 U.S. prisoners held in China had either made confessions or signed petitions calling for an end to the American war effort in Asia. Fifteen percent collaborated fully with the Chinese, and only 5 percent steadfastly resisted. The American performance contrasted poorly with that of the British, Australian, Turkish, and other United Nations prisoners—among whom collaboration was rare, even though studies showed they were treated about as badly as the Americans. Worse, an alarming number of the prisoners stuck by their confessions after returning to the United States.
http://www.martinfrost.ws/htmlfiles/brain_wash.html
You are startinjg to get me over interested in this topic.
Not really on topic, but I can't resist. Is there a chance that Ron Paul was held captive in some Islamic country in recent years? Was he brainwashed into someone who "calls for an end to American war effort in West Asia?" Was his demand for absolute "constitutional" consistency, and return to 18th century war powers, the weak link they used to "turn" him? /s