In 2023, the Biden administration made the CBP One app mandatory for asylum seekers at the southern U.S. border, leaving many stranded in Mexican cities without access to basic services while waiting for appointments. In January 2025, the Trump administration disabled the app’s scheduling feature, effectively shutting down the only official asylum pathway and further limiting options for those already at risk. On assignment with Doctors Without Borders (MSF), Yael Martinez documented migrant camps in Mexico City, where many people from Venezuela and Central America have settled in search of safety,...