Another
fake but accurate story by Techweenie.
What really happened is Clinton signed NAFTA but failed to implement the provision to allow Mexican trucks to travel that far into the US (citing safety concerns). Bush continued with the Clinton program. Then Mexico protested and put the issue to a NAFTA tribunal in 2001. The tribunal ruled in Mexico's favor and ordered the US to allow NAFTA cross-border trucking services to travel deeper into the US. After much negotiating, this one-year pilot program was finally implemented in September 2007.
You can read about it here, on Fox News
http://www.foxnews.com/wires/2007Sep09/0,4670,MexicoTrucks,00.html