It is easy now for critics to claim that the work was poor; they haven't produced their own analyses or confronted any of the hard questions. For example, would they say that no technique beyond shouted questions could be used to interrogate a high-level terrorist leader, such as Osama bin Laden, who knows of planned attacks on the United States?

I believe that the power to declare war is most important in limiting the powers of the national government in regard to the rights of its citizens, but that it does not require Congress to give its approval before the president uses force abroad. I do not believe that the framers of the Constitution understood the power to declare to mean "authorize" or "commence" war. That does not mean that the separation of powers or checks and balances will not work.

Our enemy now is a stateless network of religious extremists. They do not obey the laws of war, they hide among peaceful populations and launch surprise attacks on civilians. They have no armed forces per se, no territory or citizens to defend and no fear of dying during their attacks.

First Amendment speech and press rights may also be subordinated to the overriding need to wage war successfully.

Unlike previous wars, our enemy now is a stateless network of religious extremists. They do not obey the laws of war, they hide among peaceful populations and launch surprise attacks on civilians. They have no armed forces per se, no territory or citizens to defend and no fear of dying during their attacks. Information is our primary weapon against this enemy, and intelligence gathered from captured operatives is perhaps the most effective means of preventing future attacks.

We can guess that the unacceptable conduct of the soldiers at Abu Ghraib resulted in part from the dangerous state of affairs on the ground in a theater of war.

The United States is at war with the al Qaeda terrorist group. Al Qaeda is not a nation-state and it has not signed the Geneva Conventions. It shows no desire to obey the laws of war; if anything it directly violates them by disguising themselves as civilians and attacking purely civilian targets to cause massive casualties.