As early as this weekend, Labor Day weekend, the Bush administration could open the U.S. roadways to Mexican trucks. The Teamsters Union and three public-interest groups: The Sierra Club, Public Citizen and Environmental Law Foundation, asked a federal court yesterday for an emergency injunction to prohibit Mexican trucks on the roads.

The union has fought for 13 years to stop Mexican trucks from entering into the U.S., a promise given by Bill Clinton under the North American Free Trade Agreement, or NAFTA. They argue that the introduction of these trucks would compromise highway safety and cost U.S. jobs.

Hector Marquez, head of the Mexican Economic Ministry's Trade and NAFTA Office, disagrees. "It's very unfortunate because certainly the governments of Mexico and the United States have put forth a tremendous effort to put in place all the requirements, all the mechanisms, all the personnel and the resources to make this work and to guarantee the security and safety," the Houston Chronicle reported today. The Transportation Department's Federal Motor Carrier Safety Administration dismissed the suit as "without merit."

Rolando Ortega, a delegate from the National Confederation of Mexican Carriers, doesn't believe Mexican truckers want to travel into the United States.