Biden's COVID-19 plan covers vaccine and PPE shortages and reopening schools

President Biden’s COVID-19 plan will invoke the Defense Production Act to address personal protective equipment and vaccine shortages and require people to wear masks on public transportation, among other measures. Emergency care physician Dr. Ron Elfenbein spoke with CBSN’s Anne-Marie Green and Vladimir Duthiers about the president’s push to open schools, the vaccine rollout around the country and new research into the effectiveness of vaccines against variants of the coronavirus.