CT controversy Two doctors talk about the pros and cons of a sophisticated technology that scans the heart. Computerized tomography or CT scans render spectacular views of the heart and vessels, but some are concerned that the expensive tests don't really improve patient health.9:06 a.m.
John Lesser: cardiologist at the Minneapolis Heart Institute.
Chet Rihal: interventional cardiologist and director of catheritization lab at the Mayo Clinic.
China and the Olympics With less than a month to go before the opening ceremonies of the Beijing Olympics, lingering questions remain about pollution and possible protests of China's human rights record. Midmorning looks at what these high-profile games will mean for China's image.10:06 a.m.
Adam Minter: is a freelance writer and blogger who has lived in Shanghai for the past six years. His articles have appeared in the Atlantic Monthly, Los Angeles Times, and the Wall Street Journal.
Adam Segal: Maurice Greenberg Senior Fellow for China Studies at the Council on foreign relations.