Walk into any large Japanese retailer nowadays, and you might think Japan had become a nation of survivalists.
Aeon, a Wal-Mart-like chain of stores, devotes a sizable chunk of floor space to something called bosai-yohin, or "disaster-protection gear."
Naoto Higashi, a manager at one of the Tokyo stores, demonstrates some of their best-sellers, flashlights that have become the Swiss Army knives of anti-earthquake gear.