MEXICO CITY — When four Americans were kidnapped in the border city of Matamoros, authorities rescued the survivors within days, but thousands of Mexicans remain missing in the state long associated with cartel violence — some in cases dating back more than a decade.
Mexican authorities quickly blamed the local Gulf cartel for shooting up the Americans’ minivan after they crossed the border for cosmetic surgery Friday. They found the Americans — two dead, one injured and one apparently unharmed — early Tuesday after a massive search involving squads of Mexican soldiers and National Guard troops.
By contrast, more than 112,000 Mexicans remain missing nationwide, in many cases years or decades after they disappeared.

Associated Press
Mexican Natioanla Guard prepare a search mission Monday for four U.S. citizens kidnapped by gunmen at Matamoros, Mexico.
Though a convoy of armored Mexican military trucks extracted the Americans, the only ones searching for most of the missing Mexicans are their desperate relatives.
“If these people had been Mexicans, they might still be disappeared,” said Guadalupe Correa-Cabrera, an associate professor at George Mason University.
The rescue of the Americans provoked a special kind of fury in Tamaulipas, a border state long dominated by the warring Gulf and Northeast cartels, where the Network of Disappeared activist group estimates that 12,537 people remain missing.
Delia Quiroa, from the nearby city of Reynosa, has been looking for her brother Roberto for nine years, ever since he was kidnapped by gunmen — probably belonging to the Gulf cartel, the same group blamed for abducting the Americans — in March 2014.
Despite carrying out their own searches and pressuring authorities to investigate, the family knows nothing about his whereabouts.
Quiroa said that the families of the missing “celebrate and give thanks to God that they found these four U.S. citizens,” but said “we wish the government would search for our disappeared with the same zeal and diligence.”
“We feel complete indignation, desperation, anguish, impotence and grief,” Quiroa said, because of “authorities’ failure to act when Mexican families suffer the disappearance of a relative.”
Volunteer search teams like Quiroa’s often are forced to walk the deserts of northern Mexico with iron rods and shovels, looking for clandestine graves where the bodies of the relatives may have been dumped.
Authorities lack both the manpower, equipment and training — and many say the will — to investigate the abductions, much less arrest or punish those responsible. Things are so bad that authorities aren’t even able to identify tens of thousands of bodies that have been found.

Associated Press
Mexican army soldiers prepare a search mission Monday for four U.S. citizens kidnapped by gunmen in Matamoros, Mexico.
The fact that Americans were involved in the most recent abduction may guarantee that Mexican authorities go after the killers. About two dozen suspects, most from the Juarez cartel, were arrested in connection with the 2019 killings of nine U.S. citizens — women and children — in the western border state of Sonora.
It is unclear exactly what faction of the Gulf cartel may have abducted the Americans in Matamoros last week. The gangs go by nicknames like “The Scorpions,” “The Cyclones” and “The Troops of Hell.”
In Matamoros, Correa-Cabrera said, they are essentially all offshoots of the Cardenas clan, whose head, Osiel Cardenas Guillen, was arrested in 2003.
The gangs care little about innocent bystanders. In 2021, gunmen from factions of the Gulf cartel drove through the streets of Reynosa randomly killing 15 passersby just to intimidate their rivals.
The Mexican government claims that its “hugs not bullets” strategy — anti-poverty programs intended to reduce the number of recruits for drug gangs — has been working. The number of officially recognized homicides fell from 719 in 2020, to 707 in 2021 and 492 in 2022.
That, of course, doesn’t count all of the disappeared people. But things are clearly not as bad as the dark days of 2010 and 2011 in Tamaulipas, when drug cartels massacred 72 migrants or dragged passengers off passing buses and killed hundreds who refused to fight each other to the death with sledge hammers.
Correa-Cabrera said the decline in killings and crimes in Matamoros in recent years may have been because the Cardenas clan re-asserted control.
“It was clear that the Cardenas family had control of the territory and there was a peace, a sort of mafia peace” in Matamoros, Correa-Cabrera said, until early this year when it appeared to break down.
“At the start of this year, there began to be reports of a lot more extortion by the same group that controls the city,” said the professor, who previously taught at the then University of Texas-Brownsville just across the Rio Grande from Matamoros.
-
Worries abound that Mexico’s Maya Train will destroy jungle
Marco Ugarte
Omar Hernandez walks with his daughters on land he sold for the construction of a section of the Maya Train, near the Calakmul Biosphere Reserve in the Yucatan Peninsula of Mexico on Wednesday, Jan. 11, 2023. Hernandez hopes to sell organic honey he produces to tourists. He had to relocate his hives though, worried the heavy machinery would scare them away. (AP Photo/Marco Ugarte)
Marco Ugarte
Omar Hernandez walks with his daughters on land he sold for the construction of a section of the Maya Train, near the Calakmul Biosphere Reserve in the Yucatan Peninsula of Mexico on Wednesday, Jan. 11, 2023. Hernandez hopes to sell organic honey he produces to tourists. He had to relocate his hives though, worried the heavy machinery would scare them away. (AP Photo/Marco Ugarte)
-
Worries abound that Mexico’s Maya Train will destroy jungle
Marco Ugarte
A woman climbs up a pyramid in the Calakmul Biosphere Reserve at the Calakmul Mayan ruins in the Yucatan Peninsula of Mexico on Tuesday, Jan. 10, 2023. The Maya Train, which will stop nearby, is intended to drive economic development to some of the country's poorest areas, in part by bringing up to three million tourists each year. (AP Photo/Marco Ugarte)
Marco Ugarte
A woman climbs up a pyramid in the Calakmul Biosphere Reserve at the Calakmul Mayan ruins in the Yucatan Peninsula of Mexico on Tuesday, Jan. 10, 2023. The Maya Train, which will stop nearby, is intended to drive economic development to some of the country's poorest areas, in part by bringing up to three million tourists each year. (AP Photo/Marco Ugarte)
-
-
Worries abound that Mexico’s Maya Train will destroy jungle
Marco Ugarte
Vehicles traverse a road that includes a sign for the Maya Train and animal crossings in Xpujil, Mexico on Tuesday, Jan. 10, 2023. The Maya Train is intended to drive economic development to some of the country's poorest areas, in part by bringing up to three million tourists each year. (AP Photo/Marco Ugarte)
Marco Ugarte
Vehicles traverse a road that includes a sign for the Maya Train and animal crossings in Xpujil, Mexico on Tuesday, Jan. 10, 2023. The Maya Train is intended to drive economic development to some of the country's poorest areas, in part by bringing up to three million tourists each year. (AP Photo/Marco Ugarte)
-
Worries abound that Mexico’s Maya Train will destroy jungle
Marco Ugarte
Miguel Angel Diaz, a tour guide, walks through the Calakmul jungle in the Yucatan Peninsula of Mexico, Wednesday, Jan. 11, 2023. The Maya Train, which will stop nearby, is intended to drive economic development to some of the country's poorest areas, in part by bringing up to three million tourists each year. “There will be more jobs for us guides,” said Diaz. “But it’s going to be a heavy blow to nature.” (AP Photo/Marco Ugarte)
Marco Ugarte
Miguel Angel Diaz, a tour guide, walks through the Calakmul jungle in the Yucatan Peninsula of Mexico, Wednesday, Jan. 11, 2023. The Maya Train, which will stop nearby, is intended to drive economic development to some of the country's poorest areas, in part by bringing up to three million tourists each year. “There will be more jobs for us guides,” said Diaz. “But it’s going to be a heavy blow to nature.” (AP Photo/Marco Ugarte)
-
-
Worries abound that Mexico’s Maya Train will destroy jungle
Marco Ugarte
Trees have been cleared for the construction of a section of the Maya Train near the Calakmul Biosphere Reserve in the Yucatan Peninsula of Mexico, Tuesday, Jan. 10, 2023. The Maya Train is intended to drive economic development to some of the country's poorest areas, in part by bringing up to three million tourists each year. (AP Photo/Marco Ugarte)
Marco Ugarte
Trees have been cleared for the construction of a section of the Maya Train near the Calakmul Biosphere Reserve in the Yucatan Peninsula of Mexico, Tuesday, Jan. 10, 2023. The Maya Train is intended to drive economic development to some of the country's poorest areas, in part by bringing up to three million tourists each year. (AP Photo/Marco Ugarte)
-
Worries abound that Mexico’s Maya Train will destroy jungle
Marco Ugarte
Cars on a road near Xpujil, Mexico, can be seen through pipes to restore the local water main on Wednesday, Jan. 11, 2023. A major rail project in the Yucatan Peninsula, called the Maya Train, is intended to drive economic development to some of the country’s poorest areas, in part by bringing up to three million tourists each year. (AP Photo/Marco Ugarte)
Marco Ugarte
Cars on a road near Xpujil, Mexico, can be seen through pipes to restore the local water main on Wednesday, Jan. 11, 2023. A major rail project in the Yucatan Peninsula, called the Maya Train, is intended to drive economic development to some of the country’s poorest areas, in part by bringing up to three million tourists each year. (AP Photo/Marco Ugarte)
-
-
Worries abound that Mexico’s Maya Train will destroy jungle
Marco Ugarte
A baby crocodile is visible in waters of the Calakmul Biosphere Reserve in the Yucatan Peninsula of Mexico on Wednesday, Jan. 11, 2023. Not too far from the crocodile wetland, bulldozers are felling the jungle for the Maya Train, a $20 billion dollar project envisioned by Mexican President Andrés Manuel López Obrador. (AP Photo/Marco Ugarte)
Marco Ugarte
A baby crocodile is visible in waters of the Calakmul Biosphere Reserve in the Yucatan Peninsula of Mexico on Wednesday, Jan. 11, 2023. Not too far from the crocodile wetland, bulldozers are felling the jungle for the Maya Train, a $20 billion dollar project envisioned by Mexican President Andrés Manuel López Obrador. (AP Photo/Marco Ugarte)
-
Worries abound that Mexico’s Maya Train will destroy jungle
Marco Ugarte
Spider monkeys sit in a tree in the Calakmul Biosphere Reserve in the Yucatan Peninsula of Mexico on Tuesday, Jan. 10, 2023. The Calakmul region is home to one of the most important jaguar populations in Mesoamerica, more than 350 species of birds and one hundred mammals, plus other endangered species — the tapir, puma and ocellated turkey. (AP Photo/Marco Ugarte)
Marco Ugarte
Spider monkeys sit in a tree in the Calakmul Biosphere Reserve in the Yucatan Peninsula of Mexico on Tuesday, Jan. 10, 2023. The Calakmul region is home to one of the most important jaguar populations in Mesoamerica, more than 350 species of birds and one hundred mammals, plus other endangered species — the tapir, puma and ocellated turkey. (AP Photo/Marco Ugarte)
-
-
Worries abound that Mexico’s Maya Train will destroy jungle
Marco Ugarte
Tourists walk near a sign that reads ‘beware of the crocodile’ in the Calakmul Biosphere Reserve in the Yucatan Peninsula of Mexico on Wednesday, Jan. 11, 2023. Not too far from the crocodile wetland, bulldozers are felling the jungle for the Maya Train, a $20 billion dollar project envisioned by Mexican President Andrés Manuel López Obrador. (AP Photo/Marco Ugarte)
Marco Ugarte
Tourists walk near a sign that reads ‘beware of the crocodile’ in the Calakmul Biosphere Reserve in the Yucatan Peninsula of Mexico on Wednesday, Jan. 11, 2023. Not too far from the crocodile wetland, bulldozers are felling the jungle for the Maya Train, a $20 billion dollar project envisioned by Mexican President Andrés Manuel López Obrador. (AP Photo/Marco Ugarte)
-
Worries abound that Mexico’s Maya Train will destroy jungle
Marco Ugarte
Trees have been cleared for a section of the Maya Train in Xpujil, Mexico, Tuesday, Jan. 10, 2023. The Maya Train is intended to drive economic development to some of the country's poorest areas, in part by bringing up to three million tourists each year. (AP Photo/Marco Ugarte)
Marco Ugarte
Trees have been cleared for a section of the Maya Train in Xpujil, Mexico, Tuesday, Jan. 10, 2023. The Maya Train is intended to drive economic development to some of the country's poorest areas, in part by bringing up to three million tourists each year. (AP Photo/Marco Ugarte)
-
-
Worries abound that Mexico’s Maya Train will destroy jungle
Marco Ugarte
Wild turkeys walk in the Calakmul Biosphere Reserve in the Yucatan Peninsula of Mexico on Tuesday, Jan. 10, 2023. The Calakmul region is home to one of the most important jaguar populations in Mesoamerica, more than 350 species of birds and one hundred mammals, plus other endangered species — the tapir, puma and ocellated turkey. (AP Photo/Marco Ugarte)
Marco Ugarte
Wild turkeys walk in the Calakmul Biosphere Reserve in the Yucatan Peninsula of Mexico on Tuesday, Jan. 10, 2023. The Calakmul region is home to one of the most important jaguar populations in Mesoamerica, more than 350 species of birds and one hundred mammals, plus other endangered species — the tapir, puma and ocellated turkey. (AP Photo/Marco Ugarte)
-
Worries abound that Mexico’s Maya Train will destroy jungle
Marco Ugarte
Bats come out of the Volcan de los Murcielagos, a cave that is home to three million bats, in the Balam-Ku reserve, in the Yucatan Peninsula of Mexico on Wednesday, Jan. 11, 2023. One version of the Maya Train plan had the tracks passing less than a half mile from the bat cave. (AP Photo/Marco Ugarte)
Marco Ugarte
Bats come out of the Volcan de los Murcielagos, a cave that is home to three million bats, in the Balam-Ku reserve, in the Yucatan Peninsula of Mexico on Wednesday, Jan. 11, 2023. One version of the Maya Train plan had the tracks passing less than a half mile from the bat cave. (AP Photo/Marco Ugarte)
-
-
Worries abound that Mexico’s Maya Train will destroy jungle
Marco Ugarte
Bees from Omar Hernandez’s hives fly near what will be a section of the Maya Train near the Calakmul Biosphere Reserve in the Yucatan Peninsula of Mexico, Wednesday, Jan. 11, 2023. Hernandez hopes to sell organic honey he produces to tourists. He had to relocate his hives though, worried the heavy machinery would scare them away. (AP Photo/Marco Ugarte)
Marco Ugarte
Bees from Omar Hernandez’s hives fly near what will be a section of the Maya Train near the Calakmul Biosphere Reserve in the Yucatan Peninsula of Mexico, Wednesday, Jan. 11, 2023. Hernandez hopes to sell organic honey he produces to tourists. He had to relocate his hives though, worried the heavy machinery would scare them away. (AP Photo/Marco Ugarte)
-
Worries abound that Mexico’s Maya Train will destroy jungle
Marco Ugarte
A woodpecker hangs on to a tree in the Calakmul Biosphere Reserve in the Yucatan Peninsula of Mexico on Wednesday, Jan. 11, 2023. The Calakmul region is home to one of the most important jaguar populations in Mesoamerica, more than 350 species of birds and one hundred mammals, plus other endangered species — the tapir, puma and ocellated turkey. (AP Photo/Marco Ugarte)
Marco Ugarte
A woodpecker hangs on to a tree in the Calakmul Biosphere Reserve in the Yucatan Peninsula of Mexico on Wednesday, Jan. 11, 2023. The Calakmul region is home to one of the most important jaguar populations in Mesoamerica, more than 350 species of birds and one hundred mammals, plus other endangered species — the tapir, puma and ocellated turkey. (AP Photo/Marco Ugarte)
-
-
Worries abound that Mexico’s Maya Train will destroy jungle
Marco Ugarte
Omar Hernandez shows honey at a beehive near the Calakmul Biosphere Reserve in the Yucatan Peninsula of Mexico on Wednesday, Jan. 11, 2023. Hernandez hopes to sell organic honey he produces to tourists. He had to relocate his hives though, worried the heavy machinery would scare them away. (AP Photo/Marco Ugarte)
Marco Ugarte
Omar Hernandez shows honey at a beehive near the Calakmul Biosphere Reserve in the Yucatan Peninsula of Mexico on Wednesday, Jan. 11, 2023. Hernandez hopes to sell organic honey he produces to tourists. He had to relocate his hives though, worried the heavy machinery would scare them away. (AP Photo/Marco Ugarte)
-
Worries abound that Mexico’s Maya Train will destroy jungle
Marco Ugarte
Bats come out of the Volcan de los Murcielagos, a cave that is home to three million bats, in the Balam-Ku reserve, in the Yucatan Peninsula of Mexico, on Wednesday, Jan. 11, 2023. One version of the Maya Train plan had the tracks passing less than a half mile from the bat cave. (AP Photo/Marco Ugarte)
Marco Ugarte
Bats come out of the Volcan de los Murcielagos, a cave that is home to three million bats, in the Balam-Ku reserve, in the Yucatan Peninsula of Mexico, on Wednesday, Jan. 11, 2023. One version of the Maya Train plan had the tracks passing less than a half mile from the bat cave. (AP Photo/Marco Ugarte)
-
-
Worries abound that Mexico’s Maya Train will destroy jungle
Marco Ugarte
Two people row on a lake in the Valentin Gomez Farias communal farmlands near the Calakmul Biosphere Reserve in the Yucatan Peninsula of Mexico on Wednesday, Jan. 11, 2023. Residents created an ecotourism project nine years ago that has visitors staying in tents under roofs of woven palm. (AP Photo/Marco Ugarte)
Marco Ugarte
Two people row on a lake in the Valentin Gomez Farias communal farmlands near the Calakmul Biosphere Reserve in the Yucatan Peninsula of Mexico on Wednesday, Jan. 11, 2023. Residents created an ecotourism project nine years ago that has visitors staying in tents under roofs of woven palm. (AP Photo/Marco Ugarte)