Judy Woodruff:

Next, we turn to the crisis in Venezuela and beyond.

Venezuelans are now the largest group by nationality seeking asylum in the U.S. Last year, more than 28,000 people applied for that status, five times the number in 2015. They're fleeing political turmoil and a country in economic freefall that is threatening its neighbors.

Today, the Brazilian military is deploying to a region along its border with Venezuela that has suffered a spike in violence since Venezuelan refugees arrived. Millions of Venezuelans have fled the surrounding countries in South and Central America.

As Nick Schifrin reports, it is a refugee crisis that the United Nations warns could soon equal the one ongoing in the Mediterranean.