The PBS documentary The Trials of Muhammad Ali, covers the boxing champ's struggles outside the ring during the tumultuous mid-1960s, and his emergence as a symbol of protest and dissent for young people of that time. Ali's duality as a firebrand activist and a revolutionary icon is examplified, in some ways, by his controversial appearance at Howard University in April 22, 1967, where he gave a speech to African-American students just days before he refused induction in the armed forces, which led to his indictment and conviction for draft evasion.
