Face The Nation | Fauci: New mask guidance "based on the evolution of the science"

Dr. Anthony Fauci, the president's chief medical adviser, says "the accumulation of all of those scientific facts, information and evidence brought the CDC to make that decision, to say, now when you're vaccinated, you don't need to wear a mask, not only outdoors, but you don't need to wear it indoors." Air Date: May 16, 2021