Here's one route where immigration has slowed since Biden's new U.S. border rules

https://www.npr.org/2023/06/09/ [login to see] /immigration-colombia-darien-us-border-rules
The wharf in this town on Colombia's Caribbean coast used to be packed with migrants from all over the world boarding boats to take them across the bay to the start of the Darien Jungle.

A thick, roadless patch of rainforest on Colombia's border with Panama, the Darien Jungle has become a harrowing passageway for hundreds of thousands of people headed for the United States without a visa to enter.

But this flow of migrants has started to abate.