US Secretary of Defense Lloyd Austin on Friday rescinded plea agreements made earlier this week with Khalid Sheikh Mohammed, the alleged mastermind behind the September 11 attacks, and two of his associates. All three are being held at the US military detention facility at Guantanamo Bay, Cuba, reports Reuters. On Friday, Austin removed Susan Escallier, who oversees the Pentagon’s military tribunal at Guantanamo, from her authority to negotiate pretrial agreements in the case and assumed responsibility himself. “Effective immediately, in the exercise of my authority, I hereby withdraw from the…