On 11 February 2008 , The U.S. military charged Khalid Sheikh Mohammed , Ramzi bin al-Shibh , Mustafa Ahmad al-Hawsawi , Ali Abd Al-Aziz Ali and Walid bin Attash of committing the September 11 attacks under the military commission system , as established under the Military Commissions Act of 2006 ( MCA ) . In '' Boumediene v. Bush '' ( 2008 ) , the U.S. Supreme Court ruled that the MCA was unconstitutional
September 11 attacks
September 11 attacks
Guantanamo Bay detention camp