Pauli Poisuo,TopTenz
Weapons of mass destruction near in many shapes and forms, but for the destitute souls who stand on their way, or they all usually spell the same thing: The cessation. In their defense strategies against such large-scale facilitators of mayhem,NATO classifies WMDs in four categories: Biological, chemical, and 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 search for at some of the most frightening weapons of mass destruction human ingenuity has managed to cook up.
Source: realclearhistory.com