It is well documented in scientific research that smoking is harmful to health. Smokers have higher incidences of coronary disease, cancer, and other catastrophic illnesses. Knowing this, about 30 percent of young people begin smoking, and about 20 percent of the U.S. population smokes. Are the people who choose to smoke irrational? What do you think of the argument that we should ban smoking in order to protect these people from themselves?