10 Scary, Weird Weapons of Mass Destruction

Weapons of mass destruction come in many shapes and forms, but for the poor souls who stand on their way, they all usually spell the same thing: The end. In their defense strategies against such large-scale facilitators of mayhem, NATO classifies WMDs in four categories: Biological, chemical, nuclear, and radiological. Militaries and other uncomfortably interested parties have been looking into these tools of terror, and the results have been as varied as they have been horrifying. Here's a look at some of the most frightening weapons of mass destruction human ingenuity has managed to cook up.