(Los Angeles Times) The travelers, with bloodshot eyes and sleep-wrinkled clothes, press around a man with a map of Mexico taped to the wall. He speaks, and his finger traces various routes north to the border. All roads lead to trouble.

Up here, kidnappers and drug killers. Over there, Mexican army checkpoints. Farther along, a giant desert, with poisonous snakes and deadly heat.

Listeners rise on tiptoes to see better. A woman asks for a piece of paper; she wants to remember the name of the Mexican state bordering Arizona. Sonora. Others swap hesitant looks but stay silent, like soldiers being briefed on a terrible foe.

They are migrants, almost all from Central America, and they have endured much to reach this place, a church-run shelter about an hour’s drive north of Mexico City. And they will endure more. The man with the map is a volunteer whose job is to make sure they know how much more.

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