Hilzoy notes the latest:

No More Mr. Nice Blog points out that The Nightingale's Song, a 1995 book about five graduates of the Naval Academy, one of whom is McCain -- contains a chapter on, of all things, three Christmases McCain spent in captivity. (Thanks to Amazon's 'Search This Book' feature, and the fact that the chapter in question is only four pages long, I've read it, and you can too.) It contains no mention of this incident at all.

How plausible is that?