This admission of serious risks to your health caused by cigarette smoking is published on the Philip Morris USA website here: http://www.philipmorrisusa.com/en/health_issues/quitting_smoking.asp
Smoking & Health Issues
Quitting Smoking
To reduce the health effects of smoking, the best thing to do is to quit.
Public health authorities do not endorse either smoking fewer cigarettes or switching to lower tar and nicotine brands as a satisfactory way of reducing risk. In fact, one of the required cigarette warnings for packages and advertisements in the U.S. is, “SURGEON GENERAL’S WARNING: Quitting Smoking Now Greatly Reduces Serious Risks to Your Health.”