In its latest report on the “global tobacco epidemic,” the World Health Organization says that raising taxes is the No. 1 way to reduce use of the substance that can be harmful to human health. The sweet spot, it says, is taxing products about 75 percent of their retail price. “Raising taxes on tobacco products is one of the most effective – and cost-effective – ways to reduce consumption of products that kill, while also generating substantial revenue,” WHO Director-General Dr. Margaret Chan said in a statement. “I encourage all governments to look at the evidence, not the industry’s arguments,...