How rigid are "sell by" dates? And how long after this date will your eggs be good? Dr. Susan Sumner, who specializes in food safety and is the Director of the Department of Food Science and Technology at Virginia Tech, and Tod Marks, Senior Editor with Consumer Reports, help us get to the bottom of food labels and expiration dates.

» More information on food safety from the USDA

» More information on food labels from the USDA

» More on the Please Explain series