Vaccination is one fight I just can't walk away from. I don't understand the other point of view, and I don't know how to talk to people who won't accept the scientific method as a valid way of figuring stuff out.

My sister and I lived in Africa as children and saw children -- the lucky ones who survived -- permanently twisted by polio. Vaccines are one of the best things the 20th century had to offer. How can you take health and life and claim that somehow they're bad?