How this works in practice,

PERALTA: … This big caravan left from Tapachula, which is a city near the Guatemalan border, on Christmas Eve. Some of the migrants had spent months in southern Mexico, hoping that authorities would give them permits to move through the country. They were frustrated, so a good 5,000 of them started walking north to pressure the government. And Tuesday it looked like the government had caved. The government started sending a bunch of buses over and told them, we’ll take you to a nearby town and process you, so get on the buses. But it wasn’t long before the migrants found out that immigration officials were lying about where they were sending them, and authorities also started separating families, so the migrants started trying to get off the buses, and it was chaos. Let’s listen to Gabriela Fernandez Rivero, who was separated from her boyfriend.

GABRIELA FERNANDEZ RIVERO: (Through interpreter) We have no idea where they’re taking us. We have no idea what they’re going to do. They don’t give us any answers.

UNIDENTIFIED PERSON: (Speaking Spanish).

PERALTA: That man at the end is shouting, they’re separating kids. He was angry. He was calling immigration authorities killers.

FADEL: Do we know what ultimately happened to those people?

PERALTA: I mean, this caravan of migrants has been a headache for the president of Mexico. He said President Biden called him to tell him that he was worried about how many migrants were crossing the U.S. border. And Mexican President Andres Manuel Lopez Obrador said he had taken care of it. And now what was a very visible migrant caravan is no more. That woman and a good 2 or 3,000 migrants were put on buses, and they ended up in a bunch of little towns across southern Mexico. We managed to track down a group that was left in a tiny town near Tuxtla, and I found Maria Isabel Tovar, who was desperately looking for her son. He had just turned 18, and she says the bus that they were on made a sudden stop, and authorities told her son to get off, and they told her to stay on. Let’s listen.

MARIA ISABEL TOVAR: (Speaking Spanish, crying).

PERALTA: And she’s been traveling for months from Venezuela. It’s been so hard, she says - traveled through so many countries, and just to lose my son this way. I don’t know, she keeps repeating. I don’t know.

FADEL: I mean, is this normal to move migrants, separate them this way?

PERALTA: It is. And it gives you a glimpse at Mexican immigration policy. What authorities are doing is trying to make it harder and harder for migrants to reach the border within the U.S. And migrants rights advocates here say that the U.S. has actually managed to build a wall on its southern border, and they say that that wall is Mexico.

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https://web.archive.org/web/20240105061405/https://www.npr.org/2024/01/04/1222813507/a-view-from-a-migrant-caravan-where-thousands-had-hoped-to-make-it-to-the-u-s