A COMMON DISASTER-PREP SCENARIO: Certainties of Modern Life Upended in Japan. “In a nation where you can set your watch by a train’s arrival and a conductor apologizes for even a one-minute delay, rolling blackouts have forced commuters to leave early so they will not be stranded when the trains stop running. Some stores have been stripped bare of essentials like rice and milk, leading the prime minister to publicly call for calm. All the while, aftershocks small and large rattle windows and fray nerves.”