CBS Evening News with Norah O'Donnell, 12/21

On tonight's CBS Evening News podcast -- what we're learning about the newly-discovered strain of COVID-19 in the U.K. - how contagious is it, and will those two vaccines from Pfizer and Moderna protect against it? Also -- how customers at a popular fast-food restaurant are teaching all of us a valuable lesson in paying it forward - right in time for the holidays. To learn more about listener data and our privacy practices visit: https://www.audacyinc.com/privacy-policy Learn more about your ad choices. Visit https://podcastchoices.com/adchoices