This week, the CDC changed its website to suggest that vaccines may cause autism, even though there's no scientific evidence to prove such a link. It’s the latest change to vaccine guidance under Health Secretary Robert F. Kennedy Jr. In response, some Democratic-led states have taken steps aimed at protecting access to vaccines and pushing back on misinformation. William Brangham reports. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy