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Event Brief

Pentagon lockdown lifted after false air-quality alarm

The Pentagon lifted a lockdown after systems flagged an air-quality issue that triggered a hazmat response.
WHO: Pentagon systems
WHAT: Pentagon lifted a lockdown after a false alarm about an air-quality issue prompted a hazmat response.
WHEN: Jun 11, 2026 at 4:47 PM ET
WHERE: The Pentagon
WHY: Systems detected an 'air quality issue,' prompting a hazmat response that turned out to be a false alarm.

Reporting from 6 identified publishers across this event arc.

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