Kid diseases that have been inconsequential for decades because of childhood immunization programs are making a comeback because those programs are now under assault. We have at least one avowed anti-vaxxer Presidential candidate making noise. Trust in credible institutions and science is deteriorating. Up is down, black is white, and the idea of reason and evidence-based decision-making sounds quaint. Understanding what’s going on and what to do about it starts, coincidently, with science … social science.