Alicia Garza is an activist and organizer who co-founded Black Lives Matter. She is the host of the "Lady Don’t Take No" podcast, and the author of the new book, "The Purpose of Power: How We Come Together When We Fall Apart." Garza continues to fight racial injustice and inequity as the principal at the Black Futures Lab and the Black to the Future Action Fund, and as the special projects director for the National Domestic Workers Alliance. Garza joins Washington Post Pulitzer Prize-winning senior critic-at-large Robin Givhan to discuss what it means to do the work of organizing a movement and creating change. Join Washington Post Live, in partnership with PowerToFly, on Tuesday, Oct. 20 at 2:00 pm ET.