Sitting on the front row of a war court on the US's Guantanamo Bay naval base in Cuba, Khalid Sheikh Mohammed, one of the world's most notorious defendants, appeared to listen intently.

WASHINGTON— The Biden administration succeeded Thursday in temporarily blocking a guilty plea by accused 9/11 mastermind Khalid Sheikh Mohammed, stalling a plea deal that would spare him the ...

11, 2001 attacks, including alleged mastermind Khalid Sheikh Mohammed. The Justice Department filed its motion in the Washington, D.C. Circuit Court of Appeals Tuesday, asking the court to ...

Khalid Sheikh Mohammed and two of his top al-Qaeda lieutenants were set to admit to planning the terrorist attacks in exchange for life in prison this month. The plea deal would have effectively ...