This week, we're revisiting an episode about the power of stories and innuendo to shape the public perception of science. We'll speak to author Jon Lee about his book "An Epidemic of Rumors: How Stories Shape Our Perceptions of Disease." And we're joined by Dr. Paul A. Offit, Chief of the Division of Infectious Diseases and the Director of the Vaccine Education Center at the Children’s Hospital of Philadelphia, to get the scientific perspective of the safety and effectiveness of vaccinations.