Mark Herrmann, a partner at the internationally recognized law firm of Jones Day and a defense attorney for drug and device companies in product liability cases, discusses the legal concept of preemption. How does this doctrine protect drug and device manufacturers from tort litigation? Mr. Herrmann explains the preemption issue which is to be decided in a Supreme Court case later this year. He also outlines the public policy cited by supporters and detractors in this conversation with host Dr. Larry Kaskel.