If many Americans were to go rummaging around in the back of their pantries, chances are they'd find at least a couple of food items that are past their expiration date. Most people realize that are some products that should be thrown out shortly if they are not used by their "best by" date, like milk for example. Items like this have a noticeable difference in smell and taste when they've gone bad and it is usually fairly evident that they are no longer safe to eat. But what about those food items that have passed their expiration date but still appear to be fine? Cereal typically comes with a "best by" date stamped on the box, but is it really unsafe to consume them after that date has passed? Health experts on the Today Show weighed in on how much attention we should give these dates when it comes to cereal.