President Biden has said he wants to move quickly to address racial injustice in America. But as historian Leah Wright Rigueur told us last summer, that remains a tall mountain to climb. She calls the U.S. a “failed state” that has always fallen short of its promise of equality. But she also saw hope in the Black Lives Matter protests of 2020 — and the possibility of transformation. Listen to this repost and look for new shows next week.