US President George W Bush has said he is "not the least bit concerned" about the fact that countries throughout the world have criticised his plans to prosecute suspected terrorists in military courts.
The establishment of these non-jury courts, which can issue a death sentence, has been criticised by civil liberties groups inside and outside the US.
The military courts are not obliged to reveal evidence to the defendant, the defendant has no right to appeal and guilt will be decided by army officials.
Spain has already refused to extradite a group of al-Qaida suspects it has in custody unless the US promises that they will be tried in a civilian court and will not face the death penalty.