I'll give a decidedly different perspective for the shot at fg.
Nafta was one of the first steps of a general plan. First because of all the strength of the middle class credit was loosened and after the "recovery efforts" of the dot com boom to find a place to suck up all the liquidity that was pumped into the market Credit (accounting units created from nothing in a computer) was loosened in the housing market, this was the building of what we now call the "subprime crisis" After everyone and there brother had refinanced and gotten mortgaged into houses and those mortgages were bundled and sold to foriegn investors, the effects of NAFTA were to ship the high paying jobs offshore (NAFTA was used as a tool for this). This caused a large majority to not be able to afford the mortgages and pushed things over the tipping point.
At the same time the investors who bought all those subprimes realized the people owing the debt would never be able to pay and were activly defailting on those, they started screaming fraud and demanding money back. NAFTA was used as a tool to offshore the jobs and the people going into default had the Real Property turned over to the banks, through both legal and illegal means if you can recall the Forclosure Mills. The banks sold enough into the markets to repay the foriegn creditors keeping the financial system from completly collapsing and ended the game holding more Real Property, as many who had owned their homes outright had taken out mortgages at attractive rates through the equity they had built up, and ended up losing houses and property that they had previously owned outright.
Long story short in case that wasn't clear, NAFTA was used as a tool to facilitate a HUGE wealth transfer from the hands of private citizens into the moneyed class and financial institutions, who are now happy to re-sell (with a new 15-30 year debt obligation) us what we previously owned.
How's that?