In the long time between The Jungle and today, meatpacking has changed—first for the better, due to strong unions, then for the worse.
May Day has traditionally focused on labor and working class issues. Immigration and immigrant labor adds a new dimension to the holiday.
The Taft-Hartley Act of 1947 gave states the ability to enact right to work laws, granting opponents of unions the ability to institute open-shop laws.
An interview with scholar William P. Jones on labor unions, public employees, and race.