Trump called climate change a hoax. Biden calls it an existential threat. Washington Post journalist Juliet Eilperin talks about how Biden might reverse some of his predecessor's policies.
Sheehan, who died Jan. 7, broke the story of the Pentagon Papers and wrote A Bright Shining Lie, a Pulitzer Prize-winning book about the Vietnam War. Originally broadcast in 1988.
The documentarian, who died Jan. 7, spent decades following the lives of a group of British citizens, updating their stories with a new episode every seven years. Originally broadcast in 2013.