The justices rejected a request from Khalid Shaikh Mohammed and two others accused of plotting the Sept. 11 attacks, clearing the way for a potential death penalty trial.
Khalid Shaikh Mohammed at Guantánamo Bay in January 2022, in a photo provided by his lawyers.
The U.S. military and contractors put up this tent compound in early 2025 at Guantánamo Bay, Cuba, to house immigration detainees designated for deportation from the United States. They were taken down last year, never used.