WASHINGTON (CBS DC) – A public health proposal suggests that tobacco smokers should be required to apply and pay for a “smoker’s license” in order to continue buying cigarettes. In this week’s PLOS Medicine medical journal, two leading tobacco control advocates debate the merits of the smoker’s license. Simon Chapman, a professor at the University of Sydney, proposes that users would have to apply and pay for a mandatory license in the form of a smartcard that would be shown when buying cigarettes.