Robert F. Kennedy Jr. has a good overview on the potential link between mercury-based preservatives used in vaccines from 1981 to 2003 and the simultaneous huge increase in autism. I’d sort of bunched this theory in with fluoridation paranoia, but it looks like there’s a lot of concern among level-headed people who have looked at the data and have the expertise to understand it. If what this article implies is accurate, this whole thing could blow into another Thalidomide.