I hope this is a hoax and not something worse:
Hazardous materials crews were on the scene Monday at the IRS building in Farr West, Utah, where two people were removed on stretchers and several others were undergoing decontamination showers.
The FBI released no information about the incident at the facility in Farr West, near Ogden about 30 miles from Salt Lake City, but local reports suggested that a suspicious white powder may have been found in mail delivered to the facility.
There is very little information at this time.