Very well said! Would even make a nice Tagline.
Mary needs to face the reality that some political operatives faked some documents and duped her with a story she so desperately wanted to be true. She still wants that story to be true and believes in her heart of hears as did Dan Rather that even if the documents were fakes, that the story must be true and should be told.
She has no ethics, nor does Dan Rather. That is why they are both effectively fired.