The stories behind the pandemic: Reflecting on lives lost to COVID-19

The U.S. is facing the tragic milestone of 1 million deaths from COVID-19 this week.  While most counts have yet to officially reach 1 million — a tally by Johns Hopkins University passed 999,000 on Thursday morning — the true sum of COVID deaths nationwide already far exceeds that mark. "CBS Mornings" lead national correspondent David Begnaud reflects on some of the lives that were lost amid the coronavirus pandemic.