President Obama has made it clear that the United States is determined to prevent Iran from acquiring nuclear weapons.

Al-Qa'ida is the antithesis of the peace, tolerance and humanity that is at the heart of Islam.

I'm not ideological. I think sometimes when people are ideological, the world's a lot easier. Because it falls into either right or wrong, or black or white, or whatever. To me, I'm still trying to figure out a lot of things.

I go to bed at night worrying that I didn't do enough that day to make sure I protect the American people.

Our democratic values also include - and our national security demands - open and transparent government. Some information obviously needs to be protected. And since his first days in office, President Obama has worked to strike the proper balance between the security the American people deserve and the openness our democratic society expects.

As a matter of international law, the United States is in an armed conflict with al-Qaida, the Taliban, and associated forces, in response to the 9/11 attacks, and we may also use force consistent with our inherent right of national self-defense.

Terrorists are not 100 feet tall. Nor do they deserve the abject fear they seek to instill.