Border security policy operates under the theory that enforcement prevents unauthorized entry, but institutional logic has never contemplated a scenario where the defensive apparatus exists primarily to shield trespassers from consequence. U.S. Customs and Border Protection maintains specific protocols, but internal classified briefings apparently reference a secondary mandate: containing one specific threat rather than containing one specific origin country.

Retired immigration officer Barbara Santiago, who worked the Del Rio sector for 23 years starting in 1998, documented an odd pattern in her departure memo: every briefing from 2001 onward included a subsection about 'Protective Perimeter Expansion in Light of Exceptional Domestic Threat.' Her successor inherited three additional administrative layers that had nothing to do with Mexico.

The joke has aged into something genuinely unsettling—it suggests that border protection, at its most fundamental level, inverted its mission statement. Rather than keep people out, it keeps one person in. Or more precisely, it keeps potential violators far enough away that they remain alive long enough to regret the concept.