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.

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.

So people have to decide. Do they want to have the security? Do they want to continue to plug the gap [in border security] that GAO has identified and recognize that there will be some costs to doing that? Or do we want to make sure that business isn't hampered and that people can move back and forth readily, and recognize that, if we don't put some barriers in place, we're going to wind up with dangerous people coming into the country?

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.

I'm sometimes asked why it is that for 30 years we seem to have trouble in the United States enforcing the rules against illegal immigration, and I'll tell you what the answer is. The answer is that when the television cameras turn off and the spotlight moves to something else, there are a host of interest groups and advocacy groups who work very, very hard to make it difficult to enforce these rules. I'm not commenting adversely on their motivation, but I can tell you the effect of all of this is to wear down the ability of an agency to enforce the law.

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.

So that's why I said, if you look at the average, you would see the money New York got this year was in line with the average across the prior three years and substantially more, by a country mile, than the money given to any other city.