We also have to work, though, sort of the dark side, if you will. We've got to spend time in the shadows in the intelligence world. A lot of what needs to be done here will have to be done quietly, without any discussion, using sources and methods that are available to our intelligence agencies... That's the world these folks operate in, and so it's going to be vital for us to use any means at our disposal, basically, to achieve our objective.

We have to make America the best place in the world to do business.

I've been criticized because I've had the temerity to speak out and done a couple of interviews since I left office. I don't find anything surprising about that. I don't say - I've been careful not to get personal in terms of my criticisms for my comment, but I think the issues are simply too important for the future of the nation for us to operate as though those of us who disagree somehow shouldn't speak out and be heard. I think we need to be heard.

I'm one of those people who believes that part of the greatness of the United States is our private sector. It's what we do as private citizens for ourselves and our companies. And our economy is essentially the wonder of the world because, in fact, it's produced so much for us over the years.

As Vice President one of the things I spend time on is the continuity of government; that's the main reason I'm here is a back up for the President if anything happens to him.

Oil remains fundamentally a government business. While many regions of the world offer great oil opportunities, the Middle East with two-thirds of the world's oil and the lowest cost, is still where the prize ultimately lies, even though companies are anxious for greater access there, progress continues to be slow.

I've been extraordinarily fortunate that I've been able to go live a very active, stressful life. And I don't believe that my heart disease changed me for the worst.