Barack Obama, Florida Retiree, Senator Barbara Boxer, Vice President Cheney, Fred Krupp Environmental Defense Fund, May , Alan Greenspan, Marion Wright Edelman, Paul Rieckhoff Iraq Vet, activist and author, Falsely Imprisoned on Death Row, Nicolas Daniloff, UMBC President Freeman Hrabowski , Rep. Ike Skelton, Ben Bernanke, President Clinton, Dr. Holtzman Washington University St. Louis.