Jemison talks about the obstacles she faced, as a 16-year-old college student and then a scientist, and gives advice to today's Black Lives Matter activists.

Rep. Karen Bass believes now is the time for police reform: 'The stars are aligned right now'

Opinion writer Jonathan Capehart talks with newsmakers who challenge your ideas on politics, and explore how race, religion, age, gender and cultural identity are redrawing the lines that both divide and unite America. "Capehart" is a podcast from Washington Post Opinions, with conversations adapted from Washington Post Live events.