economic trends in tobacco Chart: Has Smoking Lost Its Cool? Some Economics of Tobacco Regulation

They will have a huge amount of information available to them

Light and Menthol Cigarettes For some reason, most people think that smoking cigarettes branded as light, mild, or ultra reduces risks to ones health

We also provide product movement reports through our Power Net program to assist you in tracking your participation in cigarette and tobacco merchandising programs

(EDIT: AliceD's answer also depicts the well-known staining of teeth, which are not keratinized, showing that the staining mechanism is likely a nonspecific adsorption of greasy things onto surfaces.) The stain can be fixed through the involvement of free radicals and other reactive species in cigarette smoke, like formaldehyde

Customs and import interpretation are where things get messy