Terry Gross

Our brains are filled with billions of neurons. Neuroscientist Sebastian Seung explains how mapping out the connections between those neurons might be the key to understanding the basis of things like personality, memory, perception, ideas and mental illness.

Writer Nick Flynn was working in a homeless shelter in his 20s when his father — an alcoholic and self-proclaimed writer who left when Flynn was a baby — showed up as a client. His story is now a movie called Being Flynn, starring Paul Dano and Robert De Niro.

A small group of engineers, soldiers and firemen risked their own lives to help prevent a complete meltdown after the quake and tsunami hit. Investigative reporter Dan Edge chronicles the aftermath of the disaster in a new Frontline documentary.