Migrants, mostly from Venezuela, walk on top of railroad cars as they get ready to continue their journey to the U.S. border in the site known as El Basurero, a stretch of land next to a trash dump and the railroad, in Huehuetoca, State of Mexico, Mexico April 26, 2023. For years, mainly Central Americans have crisscrossed Mexico on cargo trains, dubbing them collectively "La Bestia" (The Beast) due to the risk of injury, even death, if they fell off. Migrants are also vulnerable to gangs, cold nights and sweltering days. The latest wave of people are largely poor Venezuelans, including families with small children, mostly aiming to reach Ciudad Juarez, opposite the Texan city of El Paso. REUTERS/Gustavo Graf TPX IMAGES OF THE DAY SEARCH "GONZALEZ GRAF MEXICO TRAIN" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

A tram driver walks at a tram storage facility during a nationwide strike called by the German trade union Verdi over a wage dispute, in Bonn, Germany, March 27, 2023. REUTERS/Jana Rodenbusch TPX IMAGES OF THE DAY 

A railroad car sits parked at the Steamtown National Historic Site in Scranton, Pennsylvania, U.S., March 9, 2023. REUTERS/Shannon Stapleton 

Railroad cars sits parked at the Steamtown National Historic Site in Scranton, Pennsylvania, U.S., March 9, 2023. REUTERS/Shannon Stapleton 

Repairs are made to train tracks and overhead cables on the train line to Belgorod, as Russia's invasion of Ukraine continues, close to the Russian border in Slatyne, Ukraine, October 25, 2022. REUTERS/Clodagh Kilcoyne 

A passenger enters a subway train in Berlin, Germany September 27, 2022. REUTERS/Lisi Niesner 

A general view of a new train manufactured by Chinese enterprise CRRC Zhuzhou Electric Locomotive Co., Ltd, part of the upgrade of Line 1 of the subway system, during an exhibition as part of World Car Free Day, in Mexico City, Mexico, September 22, 2022. REUTERS/Luis Cortes 

A man looks through the window as a train departs for Dnipro and Lviv, during an evacuation effort of people from war-affected areas of eastern Ukraine, in Pokrovsk, Ukraine, August 4, 2022. REUTERS/Alkis Konstantinidis 

People wait to board a train to Dnipro and Lviv during an evacuation effort from war-affected areas of eastern Ukraine, in Pokrovsk, Ukraine, August 4, 2022. REUTERS/Alkis Konstantinidis 

A man is helped by a police officer to board a train to Dnipro and Lviv during an evacuation effort from war-affected areas of eastern Ukraine, in Pokrovsk, Ukraine, August 4, 2022. REUTERS/Alkis Konstantinidis 

A man is helped by a police officer to board a train to Dnipro and Lviv during an evacuation effort from war-affected areas of eastern Ukraine, in Pokrovsk, Ukraine, August 4, 2022. REUTERS/Alkis Konstantinidis 

Cars drive along a road near oil tank cars and railroad freight wagons in Omsk, Russia May 24, 2022. Picture taken with a drone. REUTERS/Alexey Malgavko 

An aerial view shows oil tank cars and railroad freight wagons in Omsk, Russia May 24, 2022. Picture taken with a drone. REUTERS/Alexey Malgavko 

An aerial view shows oil tank cars and railroad freight wagons in Omsk, Russia May 24, 2022. Picture taken with a drone. REUTERS/Alexey Malgavko 

An aerial view shows oil tank cars and railroad freight wagons in Omsk, Russia May 24, 2022. Picture taken with a drone. REUTERS/Alexey Malgavko 

An aerial view shows oil tank cars and railroad freight wagons in Omsk, Russia May 24, 2022. Picture taken with a drone. REUTERS/Alexey Malgavko 

An aerial view shows oil tank cars and railroad freight wagons in Omsk, Russia May 24, 2022. Picture taken with a drone. REUTERS/Alexey Malgavko 

An aerial view shows oil tank cars and railroad freight wagons in Omsk, Russia May 24, 2022. Picture taken with a drone. REUTERS/Alexey Malgavko 

Migrants from Central America sit on freight cars and railroads as they wait for the departure of a freight train to continue their journey towards Mexico City, in Tierra Blanca, Veracruz, Mexico December 2, 2021. REUTERS/Yahir Ceballos 

Migrants from Central America sit on freight cars and railroads as they wait for the departure of a freight train to continue their journey towards Mexico City, in Tierra Blanca, Veracruz, Mexico December 2, 2021. REUTERS/Yahir Ceballos 

A bulldozer clears the area around railroad tank cars that are on its side where tracks were damaged, after rainstorms hit both British Columbia and Washington state causing flooding on both sides of the border, in Sumas, Washington, U.S. November 17, 2021. REUTERS/Jason Redmond 

Railroad cars holding logs lies on its side where tracks were damaged, after rainstorms hit both British Columbia and Washington state causing flooding on both sides of the border, in Sumas, Washington, U.S. November 17, 2021. REUTERS/Jason Redmond 

A person walks their dog past several railroad tank cars that lie on their sides after rainstorms that hit both British Columbia and Washington state caused flooding on both sides of the border, in Sumas, Washington, U.S. November 17, 2021. REUTERS/Jason Redmond 

Railroad cars lie on their sides where tracks were damaged after rainstorms that hit both British Columbia and Washington state caused flooding on both sides of the border, in Sumas, Washington, U.S. November 17, 2021. REUTERS/Jason Redmond 

A person walks on top of washed-up gravel as railroad cars lie on their sides after rainstorms hit both British Columbia and Washington state causing flooding on both sides of the border, in Sumas, Washington, U.S. November 17, 2021. REUTERS/Jason Redmond 

A railroad tank cars lies on its side where tracks were damaged, after rainstorms hit both British Columbia and Washington state causing flooding on both sides of the border, in Sumas, Washington, U.S. November 17, 2021. REUTERS/Jason Redmond 

A mother and her son pass between railroad tank cars after crossing the Rio Bravo river to turn themselves into U.S Border Patrol agents to request asylum in El Paso, Texas, U.S., as seen from Ciudad Juarez, Mexico, March 30, 2021. REUTERS/Edgard Garrido 

A view shows railroad freight cars, including oil tanks, in Omsk, Russia May 1, 2020. Picture taken May 1, 2020. REUTERS/Alexey Malgavko 

A newly painted water tower is seen near rail tracks in Sedalia, Missouri, U.S., October 3, 2018. Picture taken October 3, 2018. To match Insight USA-TRADE/NUCOR. REUTERS/Lawrence Bryant 

A cargo train loaded with coal dust, moves past the port area near City Station in Karachi, Pakistan September 24, 2018. Picture taken September 24, 2018. REUTERS/Akhtar Soomro 

Hong Kong Chief Executive Carrie Lam speaks the opening ceremony of the Hong Kong Section of the Guangzhou-Shenzhen-Hong Kong Express Rail Link, in Hong Kong, China September 22, 2018. REUTERS/Tyrone Siu 

Coal sits in train cars on tracks in Grundy, Virginia, U.S., May 17, 2018. REUTERS/Brian Snyder 

Brazilian truck drivers block the BR-116 highway with their trucks during a strike in Curitiba, Brazil May 21, 2018. REUTERS/Rodolfo Buhrer 

Brazilian truck drivers block the BR-116 highway with their trucks during a strike in Curitiba, Brazil May 21, 2018. REUTERS/Rodolfo Buhrer 

Brazilian truck drivers block the BR-116 highway with their trucks during a strike in Curitiba, Brazil May 21, 2018. REUTERS/Rodolfo Buhrer 

Brazilian truck drivers block the BR-116 highway with their trucks during a strike in Curitiba, Brazil May 21, 2018. REUTERS/Rodolfo Buhrer 

Brazilian truck drivers sit while blocking the BR-116 highway with their trucks during a strike in Curitiba, Brazil May 21, 2018. The sign reads: "General strike, support us". REUTERS/Rodolfo Buhrer 

A Central American migrant, moving in a caravan through Mexico, stands on a wagon of a freight train as he embarks on a new leg of their travels, in Tlaquepaque, in Jalisco state, Mexico April 19, 2018. REUTERS/Edgard Garrido TPX IMAGES OF THE DAY 

A general view of Nazare from a small village of Sitio, Portugal, April 13, 2018. REUTERS/Rafael Marchante 

A train, which is used to transport garbage, rides on its way to Santiago to be reloaded, in Til Til, Chile, August 7, 2017. REUTERS/Ivan Alvarado SEARCH "TIL TIL" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY 

A train, which is used to transport garbage, passes next to a local cemetery on its way to Santiago to be reloaded, in Til Til, Chile, August 24, 2017. REUTERS/Ivan Alvarado SEARCH "TIL TIL" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Railway cars loaded with coal for export are seen at Roberts Bank Superport in Delta, British Columbia, Canada January 15, 2018. Picture taken January 15, 2018. REUTERS/Ben Nelms 

Security forces and railroad workers stand next to the car of a cargo train that ran off the tracks knocking a home in the municipality of Ecatepec, on the outskirts of Mexico City, Mexico January 18, 2018. REUTERS/Daniel Becerril 

Security forces and railroad workers stand next to the car of a cargo train that ran off the tracks knocking a home in the municipality of Ecatepec, on the outskirts of Mexico City, Mexico January 18, 2018. REUTERS/Daniel Becerril 

Security forces and railroad workers stand next to the car of a cargo train that ran off the tracks knocking a home in the municipality of Ecatepec, on the outskirts of Mexico City, Mexico January 18, 2018. REUTERS/Daniel Becerril 

Commuters prepare to board a subway car at an outdoor station in Brooklyn during a snowstorm in New York, U.S., January 4, 2018. REUTERS/Lucas Jackson 

A vintage Melbourne tram passes by Victoria's Parliament Building in Melbourne, Australia, June 13, 2017. REUTERS/Jason Reed 

A train car is seen through the destroyed walls at the railway station in Mosul, Iraq, April 10, 2017. REUTERS/Andres Martinez Casares 

Smoke rises up from buildings as train cars are seen in the railway station in Mosul, Iraq, April 5, 2017. Picture taken April 5, 2017. REUTERS/Andres Martinez Casares 

A woman from a group called "Las Patronas" (The bosses), a charitable organization that feeds Central American immigrants who travel atop a freight train known as "La Bestia", passes food and water to immigrants on their way to the border with the United States, at Amatlan de los Reyes, in Veracruz state, Mexico October 22, 2016. Picture taken October 22, 2016. REUTERS/Daniel Becerril TPX IMAGES OF THE DAY 

Former French economy minister Emmanuel Macron (2ndL) exits a tramway before a political rally for his political movement, En Marche !, or, Forward !, in Le Mans, France, October 11, 2016. REUTERS/Stephane Mahe

Former French economy minister Emmanuel Macron greets a passenger as he takes a tramway before a political rally for his political movement, En Marche !, or, Forward !, in Le Mans, France, October 11, 2016. REUTERS/Stephane Mahe

Former French economy minister Emmanuel Macron (R) takes a tramway before a political rally for his political movement, En Marche !, or, Forward !, in Le Mans, France, October 11, 2016. REUTERS/Stephane Mahe

Former French economy minister Emmanuel Macron (2ndR) takes a tramway before a political rally for his political movement, En Marche !, or, Forward !, in Le Mans, France, October 11, 2016. REUTERS/Stephane Mahe

Containers and cars are loaded on freight trains at the railroad shunting yard in Maschen near Hamburg September 23, 2012. REUTERS/Fabian Bimmer/File Photo GLOBAL BUSINESS WEEK AHEAD PACKAGE SEARCH BUSINESS WEEK AHEAD 10 OCT FOR ALL IMAGES 

A train car is pictured in an aerial photo inside the New Jersey Transit Hoboken Terminal following a train crash in Hoboken, New Jersey, U.S. September 29, 2016. REUTERS/Carlo Allegri TPX IMAGES OF THE DAY

Trams are seen in downtown Lisbon, Portugal August 29, 2016. Picture taken August 29, 2016. REUTERS/Rafael Marchante 

Trams are seen in downtown Lisbon, Portugal August 28, 2016. Picture taken August 28, 2016. REUTERS/Rafael Marchante 

Trams are seen in downtown Lisbon, Portugal August 30, 2016. REUTERS/Rafael Marchante 

Football Soccer - Euro 2016 - Lille, France 14/6/16 An armoured car of the special police intervention force RAID stands guard at the train station in Lille, France, 14 June 2016. REUTERS/Pascal Rossignol