Central American migrants wait in a Mexican shelter

Alejandra Martínez, one of the thousands of Central American migrants who are trying to reach the U.S. border, shows one of the shelters in Tapachula, Mexico. They are waiting for a transit permit that will allow them to continue.
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Alejandra Martínez, one of the thousands of Central American migrants who are trying to reach the U.S. border, shows one of the shelters in Tapachula, Mexico. They are waiting for a transit permit that will allow them to continue.