A federal appeals court will hear arguments today over whether the alleged mastermind of the 9/11 attacks and two accomplices should get plea deals. Family members of 9/11 victims weigh in.

The man accused of being the mastermind of the Sept. 11 attacks, Khalid Sheikh Mohammed, has agreed to let government ...

Judges heard nearly four hours of arguments over whether former Defense Secretary Lloyd Austin had the authority to unwind ...

The U.S. had filed an appeal to stop plea proceedings for alleged 9/11 architect Khalid Sheikh Mohammed and two others from ...

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 (AP) — Lawyers for accused 9/11 mastermind Khalid Sheikh Mohammed are urging a federal appeals panel to let his scheduled guilty plea Friday n Guantanamo Bay, Cuba, go forward in a plea ...

Joe Biden vowed to close the U.S. military court and prison at Guantanamo Bay, Cuba, but -- like several presidents before him -- did not succeed. What did he accomplish, and what's next under Trump?

WASHINGTON (AP) — Lawyers for accused 9/11 mastermind Khalid Sheikh Mohammed are urging a federal appeals panel to let his scheduled guilty plea Friday n Guantanamo Bay, Cuba, go forward in a ...