In 1972, Jane Fonda sparked international controversy when she was photographed laughing and clapping with North Vietnamese soldiers—a photograph she's apologized for ever since. Watch as she recalls a meeting with a group of Vietnam vets that taught her that empathy is revolutionary.

Watch Oprah's latest interview with Jane Fonda and her adopted daughter, Mary Williams, on Oprah's Next Chapter, airing Sunday, April 7, at 9/8c.