Pandemics are the dark side of global mobility

Here's how the 2009 swine flu raced around the world - and what it tells us about today. "The grim outlook for halting a future pandemic is shared by computational scientists, virologists, and microbiologists. Pandemics, they say, are the dark side of global mobility. Smith, an exacting scientist with a dry delivery, notes there is one 'drastic option.' 'The best way to stop the spread of infection is to stop travel,' he says." John Upton, writing in Nautilus magazine, explains.