Nearly two-thirds of the U.S. population lives within the 100-mile border zone, where Border Patrol agents have broad legal authority to set up immigration checkpoints.

Nearly two-thirds of the U.S. population lives within the 100-mile border zone, where Border Patrol agents have broad legal authority to set up immigration checkpoints.

Nearly two-thirds of the U.S. population lives within the 100-mile border zone, where Border Patrol agents have broad legal authority to set up immigration checkpoints.

Nearly two-thirds of the U.S. population lives within the 100-mile border zone, where Border Patrol agents have broad legal authority to set up immigration checkpoints.