Migrants are seen outside the U.S. Border Patrol McAllen Station in a makeshift encampment in McAllen, Texas. U.S. Customs and Border Protection (CBP) spokesman Richard Pauza referred to testimony by U.S. Border Patrol chief Carla Provost when asked...more

Migrants are seen outside the U.S. Border Patrol McAllen Station in a makeshift encampment in McAllen, Texas. U.S. Customs and Border Protection (CBP) spokesman Richard Pauza referred to testimony by U.S. Border Patrol chief Carla Provost when asked for comment. The Border Patrol is the law enforcement arm of the CBP. During her May 8 testimony to a U.S. Senate committee, Provost said the agency faced an "unprecedented border security and humanitarian crisis" as Central American migrant families headed north and apprehension numbers went "off the charts." REUTERS/Loren Elliott

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