Sayid: We kept [Naomi] a secret to keep her safe.
Kate: Safe from what, Sayid?
Sayid: Safe from Jack. He spent a week with the Others. And he brought one of them back with him. Here, amongst us. And every time we try to get answers from this woman, he prevents her from giving them!
Sun: But it's Jack, he would never do anything to hurt us. And Juliet, I believe she's a good person.
Sawyer: Good person, huh? And you're basing that on what? Wouldn't involve her taking you to one of their medical stations would it now, Mrs. Kwon?