With the current measles outbreaks in the US having, only a third of the way through 2019, surpassed the total number of cases seen in any year since measles was declared eradicated in 2000, thanks largely to pockets of unvaccinated children, you’d think that the antivaccine movement would be on the defensive. To some extent, it is, but as the number of measles cases climbs past 700 just since the beginning of the year, antivaxers are getting, if anything, more aggressive. They’re promoting legislation to make opting out of vaccine mandates easier, while trying to intimidate physicians, nurses, and advocates …