World opinion disagrees friend. Most countries would feel our open, civil system is more dependable and fairer than our military system of justice. Different standards, different responsibilities, and in one of them, those judged AGREE to set themselves within a structure of justice outside of civil law (those in the military).
Enemy combatants, as bad or good as they may be, did not sign up for our military. They should be tried either by internationally-agreed standards, or throw our open, legal system.
What's good for Americans is good for EVERYONE who is charged by our nation for any crime. What if tommorow YOU were charged with terrorism. Would you want a military commision or the regular system? I believe Jesus said..."do unto others as you would want them to do unto you".
Procedures to follow, in a nutshell.
#1 If Al-Qaeda, try, prove, find guilty or innocent, and either IMPRISON (if guilty) or release (if innocent).
#2 If legitimate POW, hold in appropriate facility humanely with oversight from Congress and SCOTUS, and release after end of our wars.
Simple LEGAL procedures we can follow that maintain our national security AND maintain our rule of law/values.