As more non-Mexicans cross border, agency changes release rules PEARSALL, Texas – Except for the 10-foot-high security fence topped with barbed wire and the concrete barriers at the front door, the institutional gray complex in a former farm field along Interstate 35 could pass for a new high school. It's not. To immigration officials, South Texas Detention Center is simply a part of the nation's effort to efficiently detain illegal immigrants pending deportation. To critics, it's a prison by another name and an example of increasing erosion of civil rights for immigrants. At the heart of the debate is the...