Around half a million illegal migrants try to cross Mexico each year in a bid to reach the United States.

BBC: Mexico: 500 migrants found in trucks in Chiapas

Outside of oil and gas, Hunt owns stakes in power plants in the Northeast, transmission lines in Texas, including a 150 megawatt cross-border line with Mexico built in 2007.

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Mexico is already benefiting from a much faster increase in cross-border trade than most economists predicted: its exports to the United States and Canada grew at an annual average of 16% between 1990 and 1998.

ECONOMIST: Breaking foreign policy taboos | The

He said he plans to focus on creating better jobs in Mexico so that his people have less of a need to cross the border.

NPR: In Mexico, Bush Promises Progress on Immigration

Higuain should probably have sealed Argentina's place in the last eight before the break but headed wide from six yards, while Mexico's Manchester United-bound Javier Hernandez was inches from connecting with a cross in injury time.

BBC: Argentina 3-1 Mexico

When NAFTA went into effect in 1995, the United States and Mexico agreed on a provision to allow lorries freely to cross the border.

ECONOMIST: Something cheery from the border