The U.S. government is approaching the study of obesity all wrong. According to leadership at the U.S. Department of Health and Human Services, food companies are to blame — they’re engineering their snacks, fast food and sweets to addict us the same way cocaine and nicotine do. Others assessing the epidemic say people overeat because they lack willpower and could stop if they really wanted to. While the blame game has been good for stirring public outrage, it hasn’t led to anything useful for