After what Irina said to Jack last week and possibly hinting that Nadia was really his, I'm surprised that nothing was said about it this week. Are we meant to assume that Jack figured it all out and just isn't saying anything about it? Are we supposed to believe that Sloane's really her father? Are the writers going to address this topic next season? I can't believe they just let Irina's comment and Jack's reaction slide like that! That's kind of annoying.