Zombie Research Society
It’s always been thought that linking networks together spreads risk over a greater area, thereby making each individual part of the structure less likely to collapse. In fact, this is the foundation of our entire modern way of life. Everything from the global financial system to local electrical grids are tied together in ways that few 
people fully understand. Unfortunately, a new study lead by Boston University physicist, Eugene Stanley, suggests we’ve gotten it all wrong.
Stanley found that normally resilient networks become increasingly prone to failure when connected with other resilient networks. Put another way, two strong systems don’t spread their risk even thinner, but instead multiply that risk to a level that neither is equipped to handle. The result is a interconnected house of cards that can collapse at a moment’s notice.
“When networks are interdependent, you might think they’re more stable. It might seem like we’re building in redundancy. But it does just the opposite.”
From a zombie survival standpoint, Stanley’s results further emphasize the need for solid advance planning.
Expect basic necessities like municipal power and water, transportation and hospital systems, police and first responder services, and even military support to vanish into thin air at the first sign of a walking corpse. Once one network fails, they’ll all come crashing down.
Sounds to me like the zombies have us right where they want us.