Where a plaintiff made public a Facebook post that threatened other corrections department employees with legal action if they testified against her, sanctions were appropriate.The 7th U.S. Circuit Court of Appeals affirmed a decision by U.S. District Judge Milton I. Shadur.The Cook County Department of Corrections hired Paula Emerson as a correctional officer in April 2005. Several years later, Emerson transferred to “Division 9,” a county-run detention unit that houses maximum-security inmates.Emerson had …