Which countries send migrants to the U.S. border, and what are they fleeing?

Migrants cross the Rio Bravo at the border in Ciudad Juarez, Mexico, on Wednesday. A fire in a Juarez migrant detention center last week killed at least 39 men.

(Nicolo Filippo Rosso / Bloomberg via Getty Images)

MEXICO CITY — The deadly fire at a migrant detention center in northern Mexico last week has put a spotlight on why, amid harsh U.S. immigration policies, migrants continue to make the dangerous journey north.

What makes conditions at home so untenable that they outweigh the hostilities of the migrant trail or the chance of being turned back at the border?

The 39 men killed and dozens wounded in the Ciudad Juarez blaze came from Guatemala, Honduras, El Salvador, Venezuela and Colombia — countries beset by political instability, poverty or violence.

Read more at LA Times.