Clarence B. Jones, Martin Luther King Jr.’s lawyer and occasional speechwriter, describes how he smuggled the letter out of jail.

Voices: The story of Bloody Sunday and today’s pilgrimage to Selma

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.