Fbi, Ricin | featured news

A dust mask and other items linked to a Mississippi martial arts instructor contained ricin, a deadly poison found in letters sent to President Obama, a U.S. senator and a state judge, according to an FBI document released Tuesday.

A letter addressed to President Obama, containing a suspicious substance, was intercepted at a screening facility outside the White House, officials said on Wednesday. The letter was intercepted at a screening facility outside the White House, the Secret Service said.

Powder on a letter for Senator Roger Wicker of Mississippi at a mail center in Washington tested positive, but was undergoing further F.B.I. analysis.