http://www.cracked.com/article_18683_7-scientific-reasons-zombie-outbreak-would-fail-quickly.html
What about 28-days later style zombies that are supposed to be normal humans, just incredibly insane?
Oh, and the leftist “Dude” style humor about guns made me eyeroll and cringe at the same time. They’re painfully ignorant on the history of guns being widely available in the US without “Every forest animal dying”.