Together with trade, the other traditional Chinese interest along their border has been stability.
In recent years, the verdant ranch country along the Mexico-Guatemala border has become a hotspot for transnational criminal organizations.
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NAFTA, price guarantees have disappeared, and the border has opened to imports from the United States, which are often cheaper.
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Meanwhile, he says, better security elsewhere along the 2, 000-mile U.S.-Mexico border has put a greater burden on his home state.
Second, economic expansion south of the border has kept many Mexicans and Central Americans home instead of hazarding the trip north.
Growing up a Protestant on the Catholic side of the border has removed much of the political dimension for these southern Orangemen.
Its exports to Mexico are booming, and the number of trucks crossing the state's Mexican border has more than doubled since 1993, to 1.5m.
The Liberian border has been officially closed since June 10, but "the border in this region is porous, " said FRCI Commander Aboubakar Sangare, in Toulepleu.
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The classic refugees would be coming from the west of Iraq, crossing the unofficial boarder from Iraqi controlled territory and northern Iraq, but that border has been closed.
Officials say the pipeline on the Iranian side of the border has been completed, and that this month will see the start of work on the project in Pakistan.
Without the safety valve of legal visas, making it harder to cross the border has mostly succeeded in encouraging people to stay (rather than cross back and forth) once they make it across the Southwest border.
Afghanistan now wants to improve relations with Pakistan, but because the border has become militarised, Kabul will have its work cut out to avoid the sort of long-term skirmishes, incursions and terror attacks that are a feature of the disputed frontier that Pakistan shares with India in Kashmir.
Numerous companies like Exxon (XOM) and Chevron (CVX) are seeking permits to construct these terminals but Cheniere Energy Inc. (LNG) has a facility at Sabine Pass near the Texas Louisiana border that has full permits and could be set for export by as soon as 2016.
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He has trouble even exchanging letters with her, because cross-border mail has been blocked.
He has added new tangles to the relatively minor problem of trucking across the international border which has led Mexico to slap on countervailing duties in defiance of the North American Free Trade Agreement in what they insist are U.S. violations.
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"Monitoring and security around border areas has been strengthened, " a defence ministry spokesman told AFP.
El Paso County, eight hundred miles up the border, has essentially the same demographics.
The Darien, near the Colombian border, has long been a supply and rest area for guerrillas.
The rise of cross-asset and cross-border trading has set people thinking about standardising communications.
The Border Patrol has recently stepped up its efforts to help those struggling in the desert.
But now the UK Border Agency has said it is no longer interested in using the building.
The Border Patrol has 20, 000 agents -- more than twice as many as there were in 2004.
The Border Patrol has seen a massive increase in funds and manpower in the past few years.
An international conference in Rome, aimed at stopping the violence along the Israeli-Lebanon border, has wrapped up.
Every large border town has, loitering round the bus stations, recruiters for slaughterhouses or chicken-processing plants across the mid-west.
The domestic macroeconomic parameters are largely due to the domestic conditions and cross-border trade has negligible impact on these parameters.
His city, the busiest crossing on the border, has this year found itself in the middle of a turf war between rival gangs.
The UK Border Agency has been "highly selective" in its use of drugs seizure figures, the chair of the UK Statistics Authority has said.
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