In this October podcast we discuss lung cancer screening. It is currently recommended that specific categories of heavy smokers be screened for lung cancer using low dose cat scan. However, some occupational exposures also cause lung cancer, as asbestos and radiations. I interview Dr Steven Markowitz from the Worker Health Protection Program (Queens College, CUNY), Fred Carpenter, a participant of the program who screened positive for lung cancer, and Dr David Weissman, Director of the Respiratory Health Division, at NIOSH.