The Greatest: Filmmaker Ken Burns on his New Documentary, "Muhammad Ali"

Documentarian Ken Burns is Major's guest this week to discuss his new film, "Muhammad Ali," a 4-part series premiering on PBS this Sunday. The documentary chronicles Ali's life from birth to death and his impact on the sports world, politics and civil rights. "It's about politics, it's about war, it's about sex, it's about faith, it's about religion, it's about Islam, it's about all these things and all these things that we're dealing with today,” Burns said. Join us for an illuminating conversation with one legend about another.