'I'm confused': Dr. Wen discusses mixed messaging on masks

Dr. Leana Wen discusses the CDC's updated guidance that recommends fully-vaccinated people wear masks indoors in areas with "substantial" and "high" transmission of Covid-19, saying that it is mostly the right policy, but criticizing its communication.

source https://www.cnn.com/videos/health/2021/07/28/dr-leana-wen-mask-policy-coronavirus-pandemic-ip-vpx.cnn