A week ago, Brenda Fitzgerald resigned as director of the Centers for Disease Control and Prevention. The revelation she holds financial stakes in a tobacco company -- and thus has a major conflict of interest -- comes as the CDC faces enormous budget cuts. The agency is preparing to downsize its global epidemic prevention programs by about 80 percent. Should we be worried about the CDC’s ability to do its job? We talked with former CDC director Tom Frieden and Andy Miller of Georgia Health News