The situation in Japan should be seen as a warning. Emergencies often strike quickly, giving little to no time to prepare. We've seen the stories of runs on grocery stores when a hurricane or blizzard is forecast, but those are tame compared to fears of nuclear disaster in the aftermath of a huge earthquake and a monster tsunami.
Was it a once in a thousand years event? We don't know. Could it happen here? We don't know. Could other emergencies occur that would be at least locally as devastating? Yes. Here's a look at what could happen:
What Your Grocery Store Will Look Like in an Emergency
How's your food storage pantry coming along?