This May Day program begins with musicologist TM Scruggs sharing some of the best-known labor and revolutionary ballads. Then Santa Rosa, Calif. organizer Luis Santoyo explains some of the May Day actions taking place in his city. Geoff Davidian of the Real News Network discusses the rights of citizens to film police. Finally, a look at the 45th anniversary of the Kent State shootings. Joseph Lewis was shot and wounded that day; Laurel Krause lost her sister to the National Guard’s gunfire.