We know that there are unaccounted-for Scud and other ballistic missiles in Iraq. And part of the problem is that, since 1998, there has been no way to even get minimal information about those programs except through intelligence means.

The growth of entrepreneurial classes throughout the world is an asset in the promotion of human rights and individual liberty, and it should be understood and used as such. Yet peace is the first and most important condition for continued prosperity and freedom. America's military power must be secure because the United States is the only guarantor of global peace and stability. The current neglect of America's armed forces threatens its ability to maintain peace.

Leading in a complex world means recognizing the simple things you can do to make things better.

Hillary Clinton is somebody of great intelligence. She is somebody who really loves this country, who speaks forcefully and well for American interests and values.

I certainly have no regrets about overthrowing Saddam Hussein. I'd do it again. And, yes, there are a lot of things that I think we'd all do differently. Maybe we made some erroneous assumptions about the fabric of the society in Iraq and about the solidity of some of the institutions. And yes, there are a lot of things I would do differently. I'd probably work to rebuild Iraq from the outside in, rather than concentrating so much on Baghdad, for instance.

I will never forget the bright September day, standing at my desk in the White House, when my young assistant said that a plane had hit the World Trade Center - and then a second one - and a third, the Pentagon.

Everywhere that I go in the world, people desperately look to American leadership in all of their world's most difficult problems. You can look at any region of the world and the United States is still the country to which those regions look for leadership.