Oswald in the doorway: the blog of the Oswald Innocence Campaign, by Ralph Cinque

The fact is, that if you claim that Marina was just trying to be protective of her aunt and uncle, to spare them- a totally arbitrary assumption which you have no right to make- that tell-tale signs of her distress would still come through. They would still manifest, even if she told them nothing outright about the horror that was going on. That extremely sunny attitude of hers, evinced in the letters, would not be there. She would have been much more subdued. There is no reason to think she was that good an actor. Few people are.