Topic: Vaccine truthers

Kentucky Gov. Matt Bevin (AP/Timothy D. Easley)

How to read Matt Bevin's anti-vax stunt

Amanda Marcotte
Knute Buehler (AP/Tom James)

GOP embracing anti-vaxxer sentiment

Igor Derysh
(Reuters/Carlo Allegri/AP/Reed Saxon/Photo montage by Salon)

America's vaccine nightmare

Elias Isquith
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McCarthy: I'm pro-vaccine

Elias Isquith