In its final report, the 9-11 Commission called on the United States to engage more effectively in the worldwide struggle of ideas against radical Islam. We continue our series of discussions on the lessons of the Sept. 11 attacks with a look at the limits and possibilities of diplomacy.
Lee Hamilton, vice-chairman of the 9-11 Commission. Former Democratic congressman from Indiana.
Patricia Harrison, acting undersecretary for public diplomacy and public affairs
Rep. Chris Smith (R-NJ), vice-chairman of House International Relations Committee
Shibley Telhami, Anwar Sadat professor for peace and development at the University of Maryland. Senior fellow at the Brookings Institution.