One person inspects a piece of metal, while another person holds a cart containing a more of the same pieces of metal.

Workers examine parts for welding next to robot bay at Alfield Industries, a subsidiary of Martinrea, one of three global auto parts makers in Canada. The auto industry is one that could be particularly affected by NAFTA changes, which has created an industry where most cars built in North America contain parts from Canada, the US and Mexico.


Fred Thornhill/Reuters