Title 42 expiration strains US immigration system and raises concerns at the border.

As pandemic-era asylum restrictions known as Title 42 expired, migrants in northern Mexico faced uncertainties about a new online system for appointments to seek asylum in the U.S. President Joe Biden's administration introduced the new asylum rules in a bid to get asylum-seekers to stop coming across the border illegally. The transition to the new system unfolded amid legal challenges and last-ditch efforts by migrants to cross a border fortified with barbed wire and troops.