Counting the Vote | Operation Warp Speed | Ken Burns

.Counting the Vote: In Philadelphia, the birthplace of American democracy, election officials carry out their duties while facing unfounded attacks on the integrity of the vote by a sitting president. Bill Whitaker reports.Operation Warp Speed: David Martin reports on the military efforts underway to inoculate 300 million Americans with an anticipated COVID-19 vaccine.Ken Burns: The filmmaker known for his exhaustive documentaries on American subjects gives Scott Pelley a glimpse into how his films are made, the message he wants to convey with them, and how he became the person he is today.