We discuss how Medicare for All might affect national health care spending; what \u201cprincipal pipelines\u201d are and how they can improve student achievement; whether graphic warning labels can stop smokers from buying cigarettes; the latest challenges facing Syria; preventing suicides after a mass shooting; and lessons about the opioid crisis from Grey\u2019s Anatomy. For more information on this week\u2019s episode, visit rand.org/podcast.