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Pentagon Lets DHS Test Military Heat Ray for Border Use

United States

Getty Images/Getty

Getty Images/Getty

What Happened

Defense Secretary Pete Hegseth authorized a seven-month temporary loan of one Active Denial System to DHS, allowing Customs and Border Protection to test the heat-ray and develop tactics starting in September. The memo bars Defense Department personnel from operating the device and does not itself authorize deployment.

Key Implications

According to KVIA, CBP officials have long discussed using the system to deter river crossings or disperse crowds, but it has never been deployed. KVIA also reports that the new clearance reverses DHS's earlier rejection, after then-Secretary Kirstjen Nielsen turned down the idea in 2018.

What Happened

Defense Secretary Pete Hegseth authorized a seven-month temporary loan of one Active Denial System to DHS, allowing Customs and Border Protection to test the heat-ray and develop tactics starting in September. The memo bars Defense Department personnel from operating the device and does not itself authorize deployment.

Key Implications

According to KVIA, CBP officials have long discussed using the system to deter river crossings or disperse crowds, but it has never been deployed. KVIA also reports that the new clearance reverses DHS's earlier rejection, after then-Secretary Kirstjen Nielsen turned down the idea in 2018.

Where Sources Agree

  • arrows_inputPentagon Approves Heat Ray Loan: A number of outlets note that Defense Secretary Pete Hegseth authorized a seven-month temporary loan of one Active Denial System unit to the Department of Homeland Security starting in September, with DHS assuming sole operational responsibility for the device, according to a Pentagon memorandum.
  • arrows_inputPentagon Authorizes Heat Ray Testing: Some outlets verify that the Pentagon has authorized the Department of Homeland Security to test the Active Denial System, a non-lethal heat ray weapon, for potential border operations, per a memorandum signed by Defense Secretary Pete Hegseth.
  • arrows_inputHeat Ray Testing Authorized: Several sources align on the Pentagon's authorization of a seven-month loan of the Active Denial System to the Department of Homeland Security for testing and tactical development at the southern border, according to a memorandum signed by Defense Secretary Pete Hegseth.

Where Sources Disagree

  • arrows_outputHeat Ray Safety Controversy: While proponents describe the Active Denial System as a non-lethal tool designed to minimize casualties and deter crossings through intense, reversible heat, critics argue the weapon inflicts second-degree burns and violates human rights, citing its inclusion on prohibited equipment lists and the potential for severe, indiscriminate injury.
  • arrows_outputHeat Ray Deployment History: The Pentagon has authorized a temporary loan of the Active Denial System 'heat ray' to the Department of Homeland Security for border testing. However, this initiative follows historical internal resistance, as former DHS Secretary Kirstjen Nielsen rejected a proposal to deploy the crowd-control weapon against migrants in 2018.

Timeline

October 21, 2026

Capabilities and controversies noted: Reporting detailed ADS capabilities (an invisible 95 GHz beam reaching roughly half a mile that penetrates ~1/64 inch of skin and causes an intense burning or tingling sensation lasting 10–15 minutes), noted past documented burns, and recorded concerns about legality, sovereignty, safety, unspecified test locations, and DHS responsibility for use; DHS may seek continued access after the initial loan.

September 02, 2026

Pentagon approves loan to DHS: A memorandum signed by Defense Secretary Pete Hegseth authorized a temporary seven‑month loan of one ADS to DHS, beginning in September, with DHS given sole responsibility for system employment and the option to request an extension.

October 01, 2018

2018 proposal rejected: Customs and Border Protection officials weighed using the ADS against migrants in 2018, but then‑Homeland Security Secretary Kirstjen Nielsen rejected the plan amid concerns about treating immigrants and citizens like enemy combatants.

Perspectives and Debates

Summary by Ground AI

A varied selection of sources chosen by Ground to reflect the diversity of this story’s coverage.

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