Bristol Palin is on her second round with “Dancing With The Stars”, and during her first appearance on the show in 2010, she received death threats. Now, it appears her detractors are at it again.

A package containing a “suspicious white substance” was sent to CBS studios, along with a note saying, “This is what will happen to you if Bristol Palin stays on the show.” While the powder was thoroughly examined and determined not to be harmful, it’s likely Palin will have to think about adding to her security team. The incident is being investigated and will be treated as a serious threat, though it’s not yet known if the perpetrator is the same person who sent Palin threatening letters during her first run on the show.