Well, the second half was -- I missed the first half.  But from what I saw, Kastner talks about Jewish identity in a way that should actually resonate with young ambivalent Jews.  He's not nostalgic, and he's not preachy, just genuinely curious about what it means to be Jewish.  OK, to put it better: you know how when someone uses the phrase "what it means to be Jewish" your eyes glaze over, even if you're, like, a Jewish studies PhD candidate, because at this point in history nobody seems to agree on what it DOES mean and yet all sorts of groups invoke it all the time to serve their own purposes?  Kastner somehow makes that question fresh again.