Eek!
That picture kinda snuck up on me as I just scrolled along.
Goodness
I think there are two factors which will minimize the impact on Bush:
1) Bush has been open about discussing his service, especially in recent interviews. Kerry has yet to take questions about the Swifty charges (or anything else, for that matter!). Dubya even went so far as to say Kerry's service was more admirable than his own, BUT that he was proud of his service.
2) Bush himself requested all the files released (not that the media is reporting that little fact). Kerry hasn't.
BC04 has a strategy on this...we'll see as it plays out.