They just walk right up to United States authorities at the border, benefiting from lax Mexican enforcement and relying on Washington's "wet foot, dry foot" policy, which gives them the ability to become permanent residents if they can reach United States soil.
Infrastructure and businesses along the border benefited from substantial state investment.
"Voice is a dynamic form of biometrics, rather than static like a fingerprint, so it is harder to replicate and copy digitally," says Emmanuelle Filsjean, global head of marketing for ValidSoft, which advises retail banks on security and helps European governments tackle cross-border benefit fraud.
Some may scoff at those peer pressured into doing good, at those who attend a Doctors Without Borders benefit because they want to prove they can drop a thousand dollars on a seat at a table and get their picture on GuestofaGuest.
The "across borders" benefits have led to the launch of Bitcoin startups in places like the Philippines, where remittances from overseas Filipino workers (OFWs) contribute more than $26 billion to the economy.
And, they say, both sides of the border will benefit.
Both countries hope an eventual opening of the border will benefit their struggling economies.
Many of the maquiladoras, factories set up just on the Mexican side of the border to benefit from lower wages and land costs, have specialised in making parts for Detroit.
In exchange for securing the road from Spinbaldak to Kandahar and keeping the Taliban at bay, Pakistani officials say, Colonel Raziq is allowed to operate with impunity and can manipulate the border to benefit his smuggling interests.
Partly as a result, consumer-electronics manufacturers have stepped up investment in Mexico in recent years.Even if Mexico continues to gain market share north of the border, the benefit will be limited by the prospect of years of lacklustre growth in the American economy.
The current chaos on its southern border will benefit the Kremlin in the short run as Putin's approval rating shoots up, but it will also likely mean postponing the structural economic reforms and improvements in governance that Putin put forward upon returning to the presidency in May 2012.
