"Title 42", the administrative measure that allowed the US territory to be closed to foreigners in the event of a health crisis, expired. On the border with Mexico, several municipalities in Texas and Arizona have declared a state of emergency.
Two thousand more troops have been deployed by Washington to support the approximately 24,000 immigration officers mobilized. But the task is Herculean as tens of thousands of visa-free migrants, mostly from Central and South America, but also from China, Russia and Haiti, jostle at the border.