John Seigenthaler, former assistant to Attorney General Robert F. Kennedy, tells the story of when his grandson Jack wanted him to explain what happened on May 20th, 1961 when a riot broke out at the Montgomery Greyhound Bus Station. Learn more on our website: http://www.pbs.org/wgbh/americanexperience/freedomriders/tag/location/montgomery-greyhound-bus-station