The law enforcement arm of the U.S. Postal Service.
Suspicious letters containing a white powder have been sent to more than three dozen congressional and election offices across the United States, triggering evacuations and security alerts ahead of the 2026 midterms. Federal agencies are investigating; initial tests show no hazardous material, and officials warn more letters may still be circulating.
The Independent and AP News report that Matthew Unglesbee has been charged after sending four white envelopes with a powdery substance to Chicago-area elected officials. Substances tested as non-dangerous; investigators say the suspect knew the method could provoke a hazmat response. Court appearances have begun.