MCALLEN, TX - JULY 25: A Salvadorian family waits at the Greyhound bus station for their trip to Houston on July 25, 2014 in McAllen, Texas. They said they had spent 6 days at a U.S. Border Patrol detention center before being released. Federal agencies have been overwhelmed by tens of thousands of immigrant families and unaccompanied minors from Central America crossing illegally into the United States. Many are being processed and released within days, with a requirement to enter immigration court proceedings at a later date. Texas' Rio Grande Valley has become the epicenter of the latest immigrant crisis, as more Central Americans have crossed illegally from Mexico into that sector than any other stretch of America's 1,933 mile border with Mexico. (Photo by John Moore/Getty Images)
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