The

migrant caravan heading from Central America to the US border.

Thousands of Central American migrants who are trying to get into the US are still blocked.

At Mexico's southern border.

We're out of space to hold them.

And we have no way to promptly return them back home to their country.

They arrive at our border and he says go back to where you came from.

In the meantime, communities along both sides of the border are responding to the increase

in families and children, fleeing instability and violence.

On a risky journey to a new future, or at least the hope of one, you're listening to

Thru Line from NPR, where we go back in time to understand the present.

Hey, I'm Ramteen Arableui.

I'm Ramda Difatta.

And on this episode, American Exile.

Let's start with a few questions.

Who is a migrant?

Where do they come from?

Why are they leaving their homes?

And as a country, how should we treat them?

All those questions have been at the center of discussions about immigration in the US

for a while now.

Needless to say, it's been a heated debate.

...