David Kessler, dean of the UCSF Medical Center discusses his new book about his wars with the tobacco companies.
David Kessler
David Kessler, dean of the UCSF Medical Center discusses his new book about his wars with the tobacco companies.

Guests:
David Kessler, dean of the UCSF Medical Center and author of "A Question of Intent: A Great American Battle With a Deadly Industry"