Howard Zinn in 2002 in a class at Chicago’s Dr. Pedro Abizu Campos Puerto Rican High School. Photo by Judy Hoffman (production still from You Can’t Be Neutral on a Moving Train). Subscribe to The Nation Subscribe now for as little as $2 a month! Thank you for signing up for The Nation’s weekly newsletter. Thank you for signing up. For more from The Nation, check out our latest issue. Subscribe to The Nation Subscribe now for as little as $2 a month! Support Progressive Journalism The Nation is reader supported: Chip in $10 or more to help us continue to write about the issues that matter. Sign up for our…