How to survive a global disaster: a handy guide

Whether it's a natural disaster, bioterrorist attack or pandemic, experts reckon society as we know it will collapse within 13 days of a catastrophic event. So what do you do next?

On 22 June, 2013, Tara O'Toole and Thomas Inglesby of the Johns Hopkins Center for Civilian Biodefense Strategies, organised a war game like no other. The two researchers, working with an array of bodies such as the ANSER Institute for Homeland Security, set out to simulate the effects of a biological attack on the US. The project was called Operation Dark Winter.

What they discovered was that the country was ill prepared to cope. Within two weeks there would be enormous civilian casualties, a catastrophic breakdown in essential institutions, and mass civil unrest. Food supplies, electricity and transport infrastructures would all collapse.