palinscaredwts.jpg We're a bit annoyed that Bristol Palin is still on ABC's Dancing With The Stars, but this is taking things a bit too far!

A threatening letter containing white powder was sent to the Dancing With the Stars production office on the CBS lot in Los Angeles yesterday, and as a result the studio was evacuated. None of the celebrity contestants were there at the time, and FBI spokeswoman Laura Eimiller said, "Just as in any case, we don't confirm the identity of a victim based on privacy and security concerns."

A rep for CBS added, "Measures were taken to secure the area and ensure the safety of personnel. Ultimately we were advised by the [Los Angeles Fire Department] that the substance was determined to be talcum powder."