Accused Sept. 11 Plotters Agree to Plead Guilty at Guantánamo Bay The New York TimesUS reaches plea deal with alleged 9/11 mastermind Khalid Sheikh Mohammed CNNThree 9/11 suspects agree to plead guilty at Guantanamo Bay Yahoo! VoicesLawmakers, families of 9/11 victims react to plea deal with terrorists: ‘Slap in the face’ Fox News9/11 alleged mastermind Khalid Sheikh Mohammed and 2 others reach plea deal ABC News