Silver Bullet Misses In mythology, bullets cast from silver can stop werewolves and witches. In actual ballistic studies comparing bullets made of silver versus lead, the silver bullet was slower and less accurate. Now the shine has come of soda taxes as a silver bullet for improved public health and larger urban tax revenues. After being the law for just two months, the third largest city in the U.S., Chicago, has voted to end its one cent per ounce soda tax. This despite multi-millionaire Michael Bloomberg outspending the big soda companies nearly three to one in his war on sugar. Philadelphia, the sixth largest city in the U.S., has found that its soda tax is falling far short of projected revenues as residents’ travel outside th...