Even after seeing the episode I think Irina has something up her sleeve that will prove noteworthy toward the CIA. I think she is good. I called it a long time ago that she would "escape" with the aid of Sark, I didn't know about Sloane and Sark's alliance at that time, but it makes sense to me. Maybe all Irina wants is all of the pieces to the Rambaldi puzzle. I don't know, I think she is good.