SAN JOSE, California: Aztec dancers carry an incense burner as part of the march. Dreamers -- undocumented students brought to the U.S. as children by their parents. Immigrants, workers, union members and community activists marched on May Day in San Jose. Marchers protested at discrimination against immigrants, unions and the rights of workers, and called on Congress to pass a just immigration reform. Many marchers were immigrants from Mexico and Central America.