A court sketch of Khalid Sheikh Mohammed, the alleged mastermind behind the 9/11 attacks.
He and four others began a week-long pretrial hearing in a Guantanamo Bay Court Monday.
They are accused funding and training the hijackers of the planes that crashed into the Twin Towers in 2001.
All five face the death penalty if convicted on charges of terrorism, hijacking and murdering neary 3,000 people.
Their lawyers, however, want confidential Red Cross reports released on the defendents treatment at Guantanamo.
They could yield mitigating information that might spare the defendants from execution if they are convicted.
(SOUNDBITE) (English) CAPTAIN JASON WRIGHT, LEGAL DEFENSE COUNSEL FOR KHALID SHEIKH MOHAMMED SAYING:
"The ICRC has shared their concerns with the U.S. Government, we believe that we should know those concerns, these men are being accused of very heinous crimes and this government is trying to kill them. They should be entitled to any