AdvertisementWhat Has NAFTA Meant For Workers? That Debate's Still RagingDecember 17, 2013Don GonyeafacebookEmailAn auto worker tightens bolts on a Focus at a Ford plant in Michigan in October. Labor unions predicted in 1993 that NAFTA would send many U.S. manufacturing jobs to Mexico, and they continue to argue that the pact prompted a race to the bottom for workers. (AFP/Getty Images)