To judge by the example of Canada, which began an experiment in free trade with the United States in 1989, the proposed U.S. free-trade agreement with Mexico is a threat to the social comity on which prosperity depends.

Editor's Note: this was written back in 1992 but the analysis it provides is really interesting and of long-lasting value when evaluating free trade concepts (thanks to FinanceProfessor.com for alerting me to this article).