10 Horrifying Technologies That Should Never Be Allowed To Exist

As we head deeper into the 21st century, we're starting to catch a glimpse of the fantastic technological possibilities that await. But we're also starting to get a grim sense of the potential horrors. Here are 10 frightening technologies that should never, ever, come into existence. As I was putting this list together, it became obvious to me that many of the technologies described below could be put to tremendously good use. It was important, therefore, for me to make the distinction between a technology per se and how it might be put to ill use. Once developed, it could be used to end scarcity, clean-up the environment, and rework human biology.