A makeshift memorial where a tractor-trailer was discovered with 53 dead migrants inside, near San Antonio, Texas, June 29, 2022.
The June 2022 deaths of , in the back of a tractor-trailer in San Antonio, Texas, show the dangers of crossing the U.S. southern border without authorization.
All of the dead – the three most common origin countries of migrants encountered by the Border Patrol and .
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Such fatalities result from two intersecting phenomena. One is the massive growth in the federal government’s policing system in the U.S.-Mexico borderlands since the mid-1990s. The other is the strong and profoundly unequal ties between the United States and the home countries of most unauthorized – or undocumented – migrants.
‘Prevention Through Deterrence’
Since 1994, when I began to , U.S.-Mexico border policing has radically changed. , this transformation has involved infusing massive amounts of resources – in the form of personnel, technology and infrastructure – into a multifaceted system of border control.
The number of Border Patrol agents has grown . Typically, 80% to 90% of them are stationed in the U.S. Southwest. Spending has increased as well. In 1994, the Border Patrol’s budget was US$400 million. In 2021, it was $4.9 billion – an approximately 700% increase in inflation-adjusted dollars in less than 30 years.
Complementing the growth is a federal border policing strategy called . Introduced in 1994, the in and around border cities and towns. Its goal is to push unauthorized migrants into remote areas characterized by harsh and dangerous terrain, forcing people to .
As , “We did believe that geography would be an ally to us.”
U.S. officials anticipated that unauthorized border crossings “would go down to a trickle once people realized what it’s like.” Instead, the deterrence policy has compelled migrants to take ever greater risks, resulting in more deaths.
Rising death toll
Traversing the southern borderlands has .
In the late 1800s, for example, unauthorized Chinese immigrants died in as they tried to avoid , a law that barred most immigrants from China. And – sometimes numbering in the hundreds – died annually trying to enter the United States without authorization.
With Prevention Through Deterrence, however, .
, there were an average of 359 fatalities annually from fiscal years 1998 to 2021 in the Southwest borderlands. This represents about one death per day over 24 years. , the highest death toll on record.
Since these deaths occur among a clandestine population, no one knows what percentage of total migrant trips end in tragedy.
But does demonstrate that high-tech surveillance towers have pushed migrants to more remote, and more lethal, travel routes beyond the zones of detection.
Crosses mark where remains were found of migrants who died trying to cross into the U.S. through the Sonoran Desert in Arizona, Jan. 24, 2021.
, as seen in San Antonio, involves cramming people into poorly ventilated spaces like the back of a truck. The hope is to transport them across the border and undetected by authorities.
The official death tolls cited above are likely severe undercounts. They are based on bodies or human remains that are retrieved. But many corpses are never recovered because of the region’s arduous terrain and enormous size: The U.S.-Mexico boundary is about 2,000 miles long. A combination of further exacerbates the undercounting problem.
The Border Patrol in its official counts. According to an April 2022 , Customs and Border Protection “has not collected and recorded, or reported to Congress, complete data on migrant deaths or disclosed limitations with the data it has reported.”
In the Border Patrol’s , for example, there were more than twice as many deaths as the agency reported from fiscal year 2015 to 2019, according to the report.
The Mexico-US connection
In 1999, : “The United States and Mexico are really one unified, if highly unequal, society,” he wrote, “drawn together rather than separated by the border.”
Back then, Mexico was the United States’ second-most important trading partner. It was also the source of by the Border Patrol in the U.S. Southwest. The free movement of people, unlike commercial goods, was not included in NAFTA, the 1994 .
Today, one could easily make an observation similar to Heyman’s about Guatemala and in relation to the United States. Both maintain deep and broad social, political and economic ties with the United States. But those ties are profoundly unequal. The United States also has a that, research shows, directly contributes to the instability and insecurity that .
In the aftermath of the deaths in San Antonio, U.S. authorities . that the deaths “underscore the need to go after the multibillion-dollar criminal smuggling industry preying on migrants.”
Such . But this framing obscures that migrants’ heavy reliance on smugglers is a direct result of the dramatic growth in the federal government’s Southwest border policing system and the associated deterrence strategy. In its official 1994 document , the Border Patrol even included among its “indicators of success” higher fees charged by smugglers and increasingly sophisticated smuggling methods.
In other words, U.S. authorities anticipated growth in the very industry they now decry. Consequently, deaths remain a way of life in the borderlands.
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Joseph Nevins is a member of the editorial committee of the North American Congress on Latin America (NACLA).
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Photos: Migrants die in Texas trailer tragedy

Police and other first responders work the scene where officials say dozens of people have been found dead and multiple others were taken to hospitals with heat-related illnesses after a semitrailer containing suspected migrants was found, Monday, June 27, 2022, in San Antonio. (AP Photo/Eric Gay)

Priests gather near the scene where officials say dozens of people have been found dead and multiple others were taken to hospitals with heat-related illnesses after a semitrailer containing suspected migrants was found, Monday, June 27, 2022, in San Antonio. (AP Photo/Eric Gay)

Police protect the scene where officials say dozens of people have been found dead and multiple others were taken to hospitals with heat-related illnesses after a semitrailer containing suspected migrants was found, Tuesday, June 28, 2022, in San Antonio. (AP Photo/Eric Gay)

Police protect the scene where officials say dozens of people have been found dead and multiple others were taken to hospitals with heat-related illnesses after a semitrailer containing suspected migrants was found, Tuesday, June 28, 2022, in San Antonio. (AP Photo/Eric Gay)

Police protect the scene where officials say dozens of people have been found dead and multiple others were taken to hospitals with heat-related illnesses after a semitrailer containing suspected migrants was found, Tuesday, June 28, 2022, in San Antonio. (AP Photo/Eric Gay)

Police protect the scene where officials say dozens of people have been found dead and multiple others were taken to hospitals with heat-related illnesses after a semitrailer containing suspected migrants was found, Tuesday, June 28, 2022, in San Antonio. (AP Photo/Eric Gay)

A U.S. Border Patrol agent leaves the scene where officials say dozens of people have been found dead and multiple others were taken to hospitals with heat-related illnesses after a semitrailer containing suspected migrants was found, Tuesday, June 28, 2022, in San Antonio. (AP Photo/Eric Gay)