Maybe a twisted "October surprise." Kerry can accuse the administration of not taking the strategy outlined in the classified documents (without revealing he's seen them) and make it look like it's the steps he would have taken to prevent 9/11.
Not likely. The Bush Admin never got the millennium plot docs, even though Clinton said he passed them on. Now, if Kerry suggests he would have taken steps to prevent 9-11 based on those documents, he admits to having prior knowledge- knowledge even the Bush Admin didn't have- thus, making him as culpable and responsible for 9-11 as Clinton.
Documents detailed deficiencies in preventing terrorist attacks at airports, port facilities and other public services....John F'n "flip-flop fop" Kerry would use to beat up on Bush.
Note also that John F'n "flip-flop fop" Kerry ignored the lack of security at Boston Logan airport some years ago.