Reading the shrill, nasty anti-vax posts on this thread reminds me a bit of the nastiness surrounding the TA last fall. New and random posters came out of the woodwork to attack the TA and anyone who was in support of it. Don't hear much about it from any of them anymore. Being proved utterly and embarrassingly wrong seems to have a silencing effect. Wonder how many of today's randoms will still be tilting at windmills next spring?