Biden administration plan could ensure most of U.S. gets vaccinated

The Biden administration's push to purchase 200 million more COVID-19 vaccine doses would put the government's total order at enough to vaccinate more than 90% of the U.S. population. Dr. Neeta Ogden spoke with CBSN about what the government still needs to do to make the vaccine rollout a success, new Centers for Disease Control guidance on in-school learning and why Regeneron's latest study on its antibody cocktail's strength against coronavirus variants is good news.