It's not just the Kerry sockpuppets. Kerry himself took a direct swipe at Bush regarding "My Pet Goat." I've got the quote somewhere, will try and track it down. Essentially, he was saying that he wouldn't have sat around for 7 minutes had he been president on 9-11.
Elsewhere, though, apparently in an unguarded moment Kerry replied, when asked about what HIS reaction was to the attack, that he and the pols he was with were so stunned, they just sat there in silence for a good 40 minutes.