[Chathamization]

Most fields have the potential to cause humanity to suffer if we look far enough into the future and look at what might be possible rather than what is likely. GMO research could possibly create superpredators that eat humans, neuroscience could possibly create superorganisms that consists of linking multiple human (or non-human) brains, a futuristic near-light speed spaceship could be devastating to the earth if it ever accidentally hit it, etc.

These only exist in the realm of Science Fiction at the moment, but the same is true for doomsday AI.