Carnegie has had the wisdom to stay in areas for long periods of time, to build communities of experts in universities and in the nonprofit sector, and to keep those ties alive even if presidential visions change. They've stayed amazingly close to the primary mission of Carnegie around the issue of advancement and diffusion of knowledge. The vision of some of the presidents—and I would say David Hamburg is a case in point here, certainly also Vartan Gregorian—is to use the expertise that Carnegie has developed over the years and its link with universities and communities of knowledge to increase knowledge and understanding that has an impact on our political milieu. And similarly, to attack really ways in which not-well-thought-through initiatives, sometimes even in the American government, should be addressed. Take for example the "Star Wars" initiative under Reagan. Hamburg gave a lot of money to experts around the country to take apart that report. And the Carnegie attack on that report, both in terms of its feasibility and in terms of its rationality in scientific terms, but also in economic terms would it be feasible, went a long way to defeating that initiative. That's probably something the American public doesn't know. And I'm sure that Carnegie doesn't really care if they know, they're not interested in that kind of publicity.