Tensions build over COVID-19 vaccine rollout and UK strain

As the death toll related to the coronavirus continues to soar past 400,000, several states are concerned about the supply of COVID-19 vaccines. Meanwhile, British Prime Minister Boris Johnson issued a dire warning about the highly contagious U.K. variant of the virus, saying it “may be associated with a higher degree of mortality.” NBC’s Meagan Fitzgerald reports for Weekend TODAY.Jan. 23, 2021