Package Marked 'Anthrax' Received at U.S. Tax Office in Missouri
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Authorities are investigating a package labeled "anthrax" and containing white powder that was opened in a mail handling room at an Internal Revenue Service mailroom in Missouri Wednesday morning.
Two IRS employees were exposed to the package, whose return address was a prison, the Kansas City Star reported Wednesday.
Hazardous materials crews, police, an ambulance, the FBI and U.S Treasury officials arrived at the scene to investigate.
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Emergency workers said the mail room has a separate ventilation system from the rest of the building.