As the risk of measles grows, why are parents so divided on vaccines?

Kate Morrow and her 8-year-old twins, Jack and Lilly, at their home in Spartanburg County, S.C. Morrow struggles to understand why many of her neighbors haven

In South Carolina, some parents embrace vaccines, others opt out. Why do people make such different choices? A mix of politics, distrust and misinformation is pushing neighbors apart.

(Image credit: Mike Belleme for NPR)