Mark Meinster is Executive Director of Warehouse Workers for Justice (WWJ), a Chicago-based worker centre founded in 2009 to win permanent, living-wage jobs in the logistics and distribution sector. He has led several successful campaigns to hold large retailers accountable for their US supply chain labour conditions. WWJ grew out of the work of the United Electrical Workers Union, where Mark worked for 19 years as a union organiser, negotiator and educator.