On The USA Science and Engineering Festival, Joe Schwarcz writes that in the media's "drive to capture public attention, science sometimes takes a back seat." He offers an accurate headline for one study: "Large daily dose of blueberry powder may reduce the growth of a rare type of artificially induced breast cancer in a special variety of immune suppressed mouse." But only claims made relevant to the individual will sell newspapers—not to mention cereals and snack bars cooked up with the latest isolate. More than money, exaggerated headlines can cost us a false sense of hope. But we…