There's an anti-us wave among Mexican transporters. They are upset over the us delay in implementation of North American Free Trade Agreement (nafta) that would let Mexican trucks deliver goods in the us. Mexican truck companies have asked authorities to suspend opening the border to us cargo vehicles. Execution of the agreement has been held up due to dissent within the us from labour, environmental and consumer groups, who say that the pact needs further review as regards the potential pollution caused by Mexican truck emissions. Mexico's border is set to open to us trucks in June.

But truck association Canacar has urged the Mexican congress and the economy ministry to block access to us trucks. nafta was meant to give Mexican transporters greater access to us highways.