Dr. Anthony Fauci on the Origins of COVID-19 and Lessons Learned Three Years Later

Dr. Anthony Fauci, former director of the National Institute of Allergy and Infectious Diseases, joins CBS News’ John Dickerson as we look back three years into the coronavirus pandemic. He acknowledged that we may never know for sure the origins of COVID-19, and called the scientific response to the virus one of the greatest successes he has seen.