Factcheck.org debunks one of Ron Paul’s pet conspiracy theories:

Paul claims that a secret conspiracy composed of the Security and Prosperity Partnership and a cabal of foreign companies is behind plans to build a NAFTA Superhighway as the first step toward creating a North American Union. But the NAFTA Superhighway that Paul describes is a myth, and the groups supposedly behind the plans are neither secret nor nefarious.

See also the fundraising letter I flagged back in October and Jamie Kirchik’s TNR piece on him for more.