Hilzoy at Obsidian Wings brings us this nugget from the Times on Johnny McCain's thesis on war prisoners:
"About a year after his release from a North Vietnamese prison camp, Cmdr. John S. McCain III sat down to address one of the most vexing questions confronting his fellow prisoners: Why did some choose to collaborate with the North Vietnamese?
Mr. McCain blamed American politics.
"The biggest factor in a man's ability to perform credibly as a prisoner of war is a strong belief in the correctness of his nation's foreign policy," Mr. McCain wrote in a 1974 essay submitted to the National War College and never released to the public. Prisoners who questioned "the legality of the war" were "extremely easy marks for Communist propaganda," he wrote."
That's correct Mr. McCain. A reasonable approach to the reality of POWs. It's best if you read the whole piece.