In Los Angeles, the "Big One" is the most likely local version of Hurricane Sandy, a massive earthquake that could damage or close most hospitals in our fault-crossed megalopolis. That's why three giant "hospitals-in-a-box" are stored in undisclosed spots in California, and why state officials have tried to find resources to keep them. But the state may not have the money to keep those three mobile field hospitals in working order after summer 2013.