User blog comment:Shadow001/Humanity/@comment-3465526-20111021233256/@comment-3465526-20111022041449

I think the writers clearly intend for there to BE a mole -- the comments of the Light to themselves weren't put in there for nothing. And they went FAR out of their way in this episode to make it clear that RT WASN'T the mole -- no point in doing that if there ISN'T a mole, but like I say -- everybody's reasonably disqualified unless its M'Gann and she's acting against her will somehow (mental bug or blackmail).