I personally think these should remain sealed. I just don't think personal relationships, unless it points to some illegality, should be a part of any political campaign. It was wrong in the Ryan case and it is wrong for Kerry. If the morality, or lack therefore, of this move isn't enough, then the pragmatics don't make sense either. It will not convince anyone who wants Kerry to defeat Pres. Bush. It may strengthen us Bush supporters, but we're the choir anyway. We know he has no character. It may convince some swing voters that we're just nasty--these are people who probably never heard of Ryan, but will hear of this because the national media will jump all over it. Keep the documents sealed.
Okay, if the character questions don't bug you, how about security considerations? To my mind, any candidate with something to hide is a national security risk.