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Story summary
- U.S. Department of Homeland Security will test a military-grade heat-ray weapon after Pentagon approval.
- Defense Secretary Pete Hegseth signed a memo loaning the Active Denial System to DHS for seven months beginning September.
- The system emits an invisible beam up to about 800 meters, causing a burning sensation lasting 10–15 minutes.
- Officials raise legal, effectiveness and sovereignty concerns about using the device on migrants before they reach U.S. territory.