In Delano, California, unionized grape pickers — mostly of Filipino and Latino descent — and other farm workers were among the most food insecure in America. Cesar Chavez, a farmworker and leader of the United Farm Workers, began a 25-day “love fast” on the traditional Feast of St. Valentine in 1968. Every night, an ecumenical array of spiritual leaders led religious services. Senator Robert F. Kennedy attended the final night, a Mass of Thanksgiving that opened with a Jewish prayer. Priests broke bread and the fast ended with communion served from an altar on a flatbed truck.