Super Bowl LV is happening this weekend and it won't be your regular championship game. The CDC and the NFL teamed up to study not only how the league played through a pandemic, but how the general public could benefit from the lessons they learned. NFL Chief Medical Officer Dr. Allen Sills tells CNN Chief Medical Correspondent Dr. Sanjay Gupta why he thinks the 2020-21 season was worth the risk. To learn more about how CNN protects listener privacy, visit cnn.com/privacy