 I think the biggest danger any country faces, particularly in the United States, is if you're in a lead position, you tend to take your leadership for granted. And if one looks back in history, in 16th century Spain was a leader, and the 17th century was France, and the 19th century was Great Britain, and the 20th century was the U.S. Warren Buffett says in the 21st century it'll be China. And Warren is somebody to pay attention to in my opinion. At the same time, America is in a reasonably good position as of this moment, even though we don't feel it with the current turmoil in the markets. We still represent over 20% of the world's domestic product, or global product, and we're about 5% of the world's people. We have great universities. We have overwhelming financial resources compared with any other country, and most dating groups of countries, in fact. The challenge I think we face is that you can't take leadership for granted. Other countries have done that and lost leadership. Another challenge we face is that change happens very quickly in this world. And one has to run very quickly in order to stay where you were before. There are a lot of aspects to global leadership. There's financial leadership, there's scientific leadership, cultural leadership, ethical leadership, business leadership, military leadership. And we're living off the seed corn of our investments in the past. And we're not reinvesting today in the fashion in which we should be. And my prediction is that if we don't change, we will lose our leadership. In many areas, the first one we'll lose will be in this competitiveness for jobs. And what that happens, the standard of living drops, you have less money for national security. And I might say this is not just my own view. I had the privilege of working with a group of 20 people, Presidents of universities, CEOs of corporations, former government officials, a couple of Nobel Prize winners. We devoted considerable time to this question of competitiveness. And I think the views I'm expressing here would probably be the anonymous views of that group, even though I don't speak for them, I think that's the case.