Guest host Ron Brownstein and a panel of experts exchange views on the falling stock market and the reaction of the Bush administration. Guest host Laurie Garrett, Professor Jeffrey Sachs, and Dr. Seth Berkley of the International AIDS Vaccine Initiative discuss the 14th International Conference on AIDS and the state of humanity's war on HIV/AIDS. Guest host Jon Frankel of CBS, and Greg LeMond, cyclist and three-time winner of the Tour de France, talk about Lance Armstrong's chances against fierce competitors, doping in the sport, and the popularity of cycling in America.