Freeze-dried foods are fully cooked meals that can be stored for years at a time. All you have to do is add water in order to have a delicious meal at any time you want. With a long shelf life of up to 25 years, these meals will provide you with the nourishment you need while others who did not prepare will have nothing to eat.
Most emergency preparedness plans want you to sock away enough food to feed yourself and your family for longer periods of time than what you'd normally have in your cupboards or pantry. If there were a major catastrophe such as another Katrina, an earthquake, or some type of power grid failure, stores would not be able to get resupplied and you might not be able to drive there anyway. Some groups want you to strive for a whole year of food.
Get ahead of curve by taking care of yourself first. The government is not going to be able to feed everybody indefinitely if something were to happen. Have your own food insurance program that doesn't have you depend on someone else!