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　　Nowhere in the world has the issue of tobacco been so much debated as in

　　our society. Nowadays, tobacco is more harmful than drug to people’s

　　health, therefore many people think that smoking is legal that is a direct and

　　primary reason to induce this kind of problem. The above point is certainly

　　true; this essay will outline three reasons.

　　The main reason is that tobacco is a silent killer to smokers. Tobacco is

　　known to be the probable cause of some 25 different diseases, and for some,

　　such as lung cancer, bronchitis and emphysema, it is the main cause.

　　According to a WHO report four million people die yearly from tobacco-relate

　　d diseases, that is one death every eight seconds. Tobacco is significantly

　　becoming a greater cause of death and disability than any other single cause.

　　Another reason is that more and more young people are under 18 years old who smoke cigarette have been blinded by the deceit of tobacconists. Tobacco among adolescents remains stubbornly persistent. Smoking among adolescents rose in the 1990s in several developed countries， such as China,Vietnam and Thailand . While new markets are being opened by the tobacco industry actions, old markets have not been closed. Tobacco is a global threat.

　　Last but not the least reason is the increase in cigarette smuggling. Because

　　of tobacco smuggling, the legal retailing and distribution systems are badly

　　affected, and faced with increased lawlessness and heavy tax losses. This be

　　havior severely affects the economy.

　　In conclusion, the tobacco should be considered illegal. Perhaps a pack of

　　cigarettes is less harmful than another drug, but tobacco is actually the

　　biggest killer of all the drugs.