Overview
The Department of Defense confirmed that it is testing a portable, backpack‑sized device purchased through an undercover operation conducted by Homeland Security Investigations (HSI). The equipment, which cost millions of dollars, is capable of emitting pulsed radio‑frequency (RF) waves and incorporates components sourced from Russian manufacturers. While the Pentagon says the device is being evaluated for “potential defensive and counter‑measure applications,” a subset of investigators has raised the possibility that it could be linked to the series of unexplained health incidents known as Havana Syndrome that have affected U.S. diplomats, intelligence officers and service members since 2016.
The Device and Its Acquisition
HSI agents, posing as private buyers, secured the technology from a foreign‑origin supplier in early 2025. According to a briefing to the House Armed Services Committee, the device measures roughly 12 inches by 8 inches and can be powered by a standard rechargeable battery, allowing it to be carried discreetly in a field‑operative’s pack. Its primary function, as described in the procurement documents, is to generate pulsed radio waves in the gigahertz range—frequencies that have been studied for both communications and directed‑energy research. The acquisition was classified as a “technology‑denial” operation aimed at preventing adversary proliferation, but the Pentagon later decided to retain the unit for internal testing.
Investigation and Possible Connection to Havana Syndrome
Since the first reports of “mysterious ailments” in Havana, Cuba, in 2016, U.S. officials have struggled to pinpoint a cause for symptoms that include vertigo, headaches, tinnitus and cognitive impairment. A 2024 joint report by the National Academy of Sciences and the Office of the Director of National Intelligence concluded that “directed‑energy exposure remains a plausible hypothesis, though definitive proof is lacking.” In light of the newly disclosed device, a team of independent researchers led by Dr. Elena Morales of the Center for Electromagnetic Health has begun a review of the device’s emission profile.
“The frequency bands and pulse patterns we see in the HSI‑acquired unit overlap with the parameters that have been hypothesized in prior Havana Syndrome analyses,” Dr. Morales said in an interview on Tuesday. “That does not prove causation, but it certainly warrants rigorous, transparent testing.”
Congressional staffers have also requested that the Defense Department provide a full technical assessment to determine whether the device’s output could produce the neurological effects reported by affected personnel.
Official Responses
Pentagon spokesperson Lt. Gen. Mark Whitaker emphasized that the agency is “following standard scientific protocols” and that “no evidence at this stage links the device to any health incidents.” HSI Acting Assistant Director Carla Nguyen added that the operation’s original intent was “to understand foreign‑origin directed‑energy capabilities, not to weaponize them.” However, Senate Armed Services Committee Chairman Sen. James Reynolds (R‑VA) expressed concern, stating, “If a piece of equipment purchased with taxpayer money could potentially be responsible for harm to our own people, we need full accountability and a clear path forward.”
Implications and Next Steps
The disclosure has reignited debate over the U.S. government’s handling of Havana Syndrome investigations and the broader issue of directed‑energy weapons. Analysts note that even if the device is not the source of past incidents, its existence underscores a growing “arms race” in electromagnetic technologies. The Department of Defense has pledged to complete its testing by the end of the fiscal year and to share the findings with the Intelligence Community and relevant congressional oversight bodies. Meanwhile, affected service members continue to receive medical monitoring and support, as lawmakers push for additional funding to study long‑term health outcomes associated with unexplained neurological symptoms.
