Trick or threat? National security to be tested on Halloween in simulation using zombies

Trick or threat? National security to be tested on Halloween in simulation using zombies | StarTribune.com: "SAN DIEGO - Move over vampires, goblins and haunted houses, this kind of Halloween terror aims to shake up even the toughest warriors: An untold number of so-called zombies are coming to a counterterrorism summit attended by hundreds of Marines, Navy special ops, soldiers, police, firefighters and others to prepare them for their worst nightmares."