As COVID-19 vaccinations begin, U.S. reaches grim toll of 300,000 coronavirus deaths
A milestone in the COVID-19 pandemic arrived Monday as the first frontline health care workers in the U.S. began receiving shots of the Pfizer vaccine. But another milestone was reached as well, as the nation's death toll from the pandemic hit 300,000. CBSN has the latest, with a report from lead national correspondent David Begnaud.