What's That Made All the Difference about?
Sometimes, a single moment can change a person’s entire life. Like when documentary filmmaker Ken Burns saw his father cry for the first time, or when Sal Khan, a hedge fund analyst, decided to tackle the impossible and educate people around the globe. Host Alicia Burke talks to doers like Ken Burns, Arianna Huffington and Sal Khan about the powerful moments that inspired them to make an impact.
