Intro

Many migrants in Mexico journey north to the U.S. border by riding on top of freight trains. It's a dangerous trip: migrants have been kidnapped by cartels or killed by falling onto the tracks. And now, with the Trump administration suspending asylum applications at the border, the chances of crossing into the U.S. are even smaller than they were a few months ago.

NPR's Eyder Peralta recently rode along with migrants through a frigid night to try to answer a simple question: why do so many still take the risk?

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