President Donald Trump cracked down on border security, creating a new situation in which foreigners trying to enter the United States are instead backlogged in Central America. There are now would-be illegal aliens streaming back home through the region after realizing they would not make it into the United States,

Costa Rica and Panama have agreed to serve as “bridge” countries holding the migrants. At least three flights have arrived in Panama so far, and one flight landed in Costa Rica on Thursday.

Upon arrival, the migrants will be bused from Costa Rica’s capital to a rural holding facility near the Panama border, where they will wait up to 30 days to be flown back to their countries of ...

Costa Rica is the second Central American nation to accept migrants from distant countries as the Trump administration ramps up deportation flights.

In the interconnected web of nature, small disruptions can yield outsized consequences. One such example comes from Central America, where the decline of frogs and other amphibians is linked to a surprising and troubling outcome: a rise in malaria cases.