SNIP
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>For those who are not familiar, NAFTA stands for the North American Free-Trade Agreement in which several North-American countries participate. Among others Canada, US and Mexico. The opinion of most people in or from countries outside of the US is that most economic benefits have been realized by US companies.

...and tariffs/duties/taxes have been imposed by the U.S. for those areas where economic benefits are less optimal for them. These invariably get tossed out by mediation bodies, but by then the damage to the exporting country is done.