Khalid Sheikh Mohammed, accused mastermind of the September 11 attacks, remains detained at Guantanamo Bay two decades after his capture. A military trial is scheduled for 2028, but torture-tainted evidence, legal disputes and procedural delays raise doubts over whether it will occur
It is the first step in what is expected to be a surge in the number of migrants held at Navy base in Cuba, which for decades was used to detain foreigners associated with the Sept 11, 2001, attacks
