A white powder discovered on the dashboard of an unlocked car in Bethesda does not contain anthrax spores, and agents are investigating the case as a possible Halloween hoax, the FBI said yesterday.

BOSTON — The powder found in threatening letters received Wednesday by at least 11 Massachusetts police stations is not anthrax, state health officials said, dispelling fears of a new letter-borne ...

SHELTON An FBI spokeswoman said Thursday that a white powdery substance found Tuesday at a postal facility on Forest Parkway has tested negative for the presence of any harmful agent, including ...

Anthrax, which is present in many soils, can come out of dormancy and cause sudden death in livestock. Although most picture the white powder developed in a laboratory and associated with the 2001 ...

ATLANTA — White powder in a bag found at the U.S. Army Reserve Command headquarters building at Ft. McPherson was not anthrax, an Army spokesman said. Field tests shortly after the bag was found ...

Following the anthrax mail attack on the eastern United States in September 2001, emergency response organizations across the country were inundated with “white-powder” incidents. All but a few of the ...