Terry Gross

Galloway, who died Aug. 18, was the only civilian to be awarded the medal of valor in the Vietnam War. He later co-authored We Were Soldiers Once ... and Young. Originally broadcast in 1992 and 2003.

Journalist CLARISSA WARD is CNN’s Chief International Correspondent. She recently reported from the streets of Kabul as thousands of people tried to get into the secure part of the airport, fly out of the country, and escape the rule of the Taliban. She flew out of Afghanistan on Saturday with her crew.

Psychiatrist ANNA LEMBKE's new book Dopamine Nation is about the neuro transmitter - the chemical messenger released in the brain most involved in processing rewards.  It plays a big part in addictions.