Smoking is described as the biggest public health disaster in the history of the world as it kills more than half of smokers, mostly from cancer.u00a0

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John Seffrin, chief executive of the American Cancer Society, who was speaking at a high-level forum of the world's 100 leading cancer experts gathered in the Swiss resort of Lugano, who issued a stark warning to governments worldwide.u00a0

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Experts said governments must do far more than they have done to control the global tobacco industry, either by raising cigarette prices dramatically, outlawing tobacco marketing or by taxing the multinational profits of the big cigarette firms.u00a0

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