Gil Mudskipper is here, one more time!
Lots of people seem to have the misplaced impression that a zombie infection would be contained -- probably by government troops -- before it could possibly affect them. If there's one thing that decades of zombie movies have taught us, it's that this idea is foolish. Government fat cats will just hunker down in their Cold War bomb shelters surrounded by crack soldiers trained in special counter-zombie tactics and have their mad scientists conduct experiments on how to get zombies to pay taxes.
Here's a simulation on how a zombie infection would spread. It starts with ONE zombie, and soon spreads...
Flint likes this version of the simulator better, because it sometimes factors in "hunters." He likes zombie hunters.