The U.S. Supreme Court has consistently rejected efforts to revive plea deals for Khalid Sheikh Mohammed and other alleged conspirators of the September 11 attacks. The high court backed a Pentagon decision to cancel these plea agreements, affirming that the prolonged legal battles have resulted in an extended farce surrounding the proceedings against those accused of planning the attacks. The decision prevents any escalation of legal maneuvers aimed at dismissing charges or evading potential penalties, including the death penalty.