No it's not a joke. Do a Google search on "NAFTA SuperHighway" and you'll get tons of results. Apparently feasilibity studies are already underway in Indiana for conversion of current highways.
http://www.libertypost.org/cgi-bin/readart.cgi?ArtNum=145586
Is it time to throw the tea overboard again?
These days, it's more like tequila.
It's too late.Go to www.spp.gov
Improve the safety and efficiency of North America's transportation system by expanding market access, facilitating multimodal corridors, reducing congestion, and alleviating bottlenecks at the border that inhibit growth and threaten our quality of life (e.g., expand air services agreements, increase airspace capacity, initiate an Aviation Safety Agreement process, pursue smart border information technology initiatives, ensure compatibility of regulations and standards in areas such as statistics, motor carrier and rail safety, and working with responsible jurisdictions, develop mechanisms for enhanced road infrastructure planning, including an inventory of border transportation infrastructure in major corridors and public-private financing instruments for border projects).
Dude, do you realize where your link goes?