First, we did rank everybody by risk, and New York comes out number one.

The Department of Defense took 40 years to get where it got.

Even the kinds of ingredients you can find in your own kitchen can be used to make bombs. So the problem is with the people and not with the tools.

The fact that we have not had a terrorist attack in this country in the last six years is not a cause for complacency or a time to celebrate the end of the struggle. The threat is not going away. The enemy has not lost interest. ...Fundamentally, we're in a struggle about ideology. Terrorists want to remake the world in their own image and it is the image that is intolerant of the kinds of institutions that we cherish.

We always monitor the flow of information, intelligence, threat streams to see whether we have any indication there's some imminent. We work hard to identify potential cells and disrupt them. This is one of the reasons we put so much emphasis on intelligence gathering.

We don't really have the ability to enforce the law with respect to illegal work in this country in a way that's truly effective...We haven't been able to require every employer to enter a system in which they check the work status of their employees and determine whether they're legal, and without that, we don't really have the ability to enforce the law with respect to illegal work in this country in a way that's truly effective. And that would be the single greatest additional weapon we could use if we're serious about tackling this problem.

But one thing that we have done in the last four years is we have really put pressure on the leadership of this organization [Al Qaeda]. We have killed a significant number of leaders. We've captured others. Those that remain have to look over their shoulders, they have to be on the run. So that even if we don't manage to kill or capture them all within four years, what we do do is put the kind of pressure on them that makes them focus on their own skins, as opposed to carrying out attacks.