It's worrisome but since AI is built by humans it is possible to create some manual shutdown to such technology, oh, I may be wrong, AI are very smart and they can notice this safe shutdown process and find a way to bypass it, I hope this won't happen and those building AI need to be very careful with what they feed AI, too much of information can be used against us.

If someone like Bill and Musk can feel this way about AI who am I to think otherwise?