WANT YOUR KIDS TO EAT THEIR VEGETABLES? Serve them in a McDonald's wrapper. A new study shows that children as young a three-years-old prefer food packaged in the Golden Arches to food that comes on their plate. Now you could bemoan the pernicious effect advertising is having on our young, but what's the point? Rather, this seems like a marketing opportunity: Selling McDonald's wrappers to parents who want to sneak some cruciferous veggies into their kid's diets should be a win-win proposition... --Ezra Klein