You are what you eat and so the saying goes, but a group of parents believe that the food coloring their children digest affects their behavior. Commonly found in processed foods like Twizzlers, Doritos and Twinkies as well as baked goods, red dye no. 40 is to blame for aggressive outbursts in kids according to some moms and dads. The FDA maintains that the dye is safe for consumption. What's your opinion?