Shaken by a court's decision to acquit George Zimmerman over the shooting death of Trayvon Martin, Alicia Garza wrote, "Black people, I love you. I love us. Our lives matter." From there, the hashtag #BlackLivesMatter was born and then a social movement. It is a world away from the life she had growing up with her mother, stepfather, and brother, where they ran an antique shop in Marin County in San Francisco. Standing firmly in the national spotlight today in a divided America, she is a leading voice in what's widely viewed as America's new civil rights movement.

Henry Rollins discusses his tumultuous childhood growing up in Washington DC, and how he transitioned from scooping ice cream at Haagen Dazs to fronting punk rock band Black Flag. A turning point came for Henry Rollins about a decade ago, marked by a departure from music into activism and spoken word performance,  "For me, music was a time and a place. I never really enjoyed being in a band", says Henry Rollins. "It was in me, and it needed to come out. Like a 25-year exorcism. One day I woke up and I didn't have any more lyrics."

What galvanised African American activist Alicia Garza to co-found #BlackLivesMatter? How did Henry Rollins make the jump from shift manager at Häagen-Dazs to lead singer of US punk rock band Black Flag? How does NSW Australian of the Year Deng Thiak Adut’s former life as a Sudanese refugee and child soldier inform his practice of the law?  

Find the answer to these questions and more in a new Sydney Opera House podcast It's A Long Story. A podcast that explores the the stories behind the big ideas of some of our most influential and acclaimed guests.