Letters to NYC Mayor Bloomberg Test Positive For RicinLetters to NYC Mayor Bloomberg Test Positive For RicinNew York City police say two threatening letters sent to Mayor Michael Bloomberg contained traces of the deadly poison ricin.Associated PressAssociated Press
Letter to Mississippi Senator Tests For RicinLetter to Mississippi Senator Tests For RicinSen. Roger Wicker is acknowledging a letter sent to his Washington office is the subject of an investigation by the United States Capitol Police and the FBI.Associated PressAssociated Press