We're in a new world. We're in a world in which the possibility of terrorism, married up with technology, could make us very, very sorry that we didn't act.

But the truth of the matter is, we're an open society, we want to remain an open society, and there will continue to be vulnerability. That's why we have to meet the threats when they are not yet taking place on our territory and on our soil.

So I think, if September 11 taught us anything, it taught us that we're vulnerable, and vulnerable in ways that we didn't fully understand.

Condoleezza Rice Quotes