Grief Expert Reflects on 400,000 U.S. Lives Lost To COVID

On the night before his inauguration, President Biden led a memorial for the 400,000 Americans who have died from coronavirus. "To heal, we must remember," he said. As we know, Biden's own life has been shaped by tragedy and personal loss. David Kessler, an expert on death and grieving, is the author of "Finding Meaning: The Sixth Stage of Grief." He spoke with Michel Martin.