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Tech's fight against anti-vaccine content prompts free speech debate

Doctors are questioning whether big tech companies like Amazon, Facebook and Google share the blame for an alarming rise in unvaccinated kids. The percentage of young children who have not received any vaccinations has quadrupled since 2001. It coincides with hundreds of cases of measles reported in the U.S. Public health experts worry parents are opting out of vaccines after finding faulty science online. Tony Dokoupil reports.

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