mlts22 wrote:
... but the time taken for the BP to search every vehicle, which can add hours to a trip.
But wouldn't that kind of search produce long backups that would make the news (as opposed to rumors)?
https://maps.google.com/maps?q=Sierra+Blanca,+TX&hl=en&ll=31.19577,-105.443645&spn=0.018392,0.03592&sll=31.278551,-104.644775&sspn=4.703072,9.195557&oq=sier&hnear=Sierra+Blanca,+Hudspeth,+Texas&t=h&z=15&layer=c&cbll=31.195691,-105.443384&panoid=nxDxgdgxIM5SuElKtdRNWQ&cbp=12,124.54,,0,-13.44This streetview image shows a long line, mainly of trucks, at the permanent inspection station, east bound, west of Sierra Blanca, TX. To the west I10 runs close to the border. To the east it is well away.
https://maps.google.com/maps?q=Sierra+Blanca,+TX&hl=en&ll=31.191887,-105.43165&spn=0.002317,0.00449&sll=31.278551,-104.644775&sspn=4.703072,9.195557&oq=sier&hnear=Sierra+Blanca,+Hudspeth,+Texas&t=h&z=18&layer=c&cbll=31.191728,-105.431291&panoid=DEAT3Ce0kneXQ3BiBuFFbA&cbp=12,122.91,,0,-0.11Cars are diverted into the checkpoint further up. The line is much shorter.
http://en.wikipedia.org/wiki/United_States_Border_Patrol_Interior_CheckpointsThis article lists only one permanent checkpoint on I10. It also quotes the court ruling pertaining to such checkpoints.