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Authorities investigate letters with ‘suspicious substances' sent to election offices

Authorities investigate letters with ‘suspicious substances' sent to election offices
Photo: NBC Bay Area (KNTV, NBC) · view original

Federal authorities are investigating letters with “suspicious substances” that have been mailed to congressional and election offices nationwide and are urging recipients to treat the mailings as “potentially hazardous.” The investigation by the FBI, U.S. Postal Inspection Service and U.S. Capit...

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