US, Mexico widen asylum crackdown to push back all migrants

In this Aug. 2, 2019, file photo, migrants return to Mexico as other migrants line up on their way to request asylum in the U.S., at the foot of the Puerta Mexico bridge in Matamoros, Mexico, that crosses into Brownsville, Texas. A Trump administration program forcing asylum seekers to wait out the process in Mexico has evolved into a sweeping rejection of all forms of migrants, with both countries quietly working to keep people out of the U.S. despite threats to their safety. (AP Photo/Emilio Espejel, File)