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DHS secretary’s border wall plans could wipe out the jaguar in Arizona

Kristi Noem in September 2025
Tia Dufour/Department of Homeland Security
Kristi Noem in September 2025

The nation's top homeland security official says she has the right to build new sections of border wall — even though it could wipe out the jaguar in Arizona.

A lawyer for DHS head Kristi Noem says the 1996 Immigration Reform and Immigrant Responsibility Act authorizes her agency to construct physical barriers and roads along the border.

Her plans include 27 miles of 30-foot-high barriers to replace existing vehicle barriers, which don’t block wildlife movement. Two environmental groups that are suing over Noem’s plans call that stretch of border “a critical lifeline” connecting jaguars to breeding populations in Sonora.

They argue the wall would be the death knell for jaguars in the U.S. and want the judge to declare that Congress acted illegally in giving Noem total discretion to build without guidance or limits.

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KJZZ senior field correspondent Kathy Ritchie has 20 years of experience reporting and writing stories for national and local media outlets — nearly a decade of it has been spent in public media.