I absolutely don't think a sentient artificial intelligence is going to wage war against the human species.
As a kid I wanted to write science fiction, and I was never without a book. Later I really got into being a scientist and never thought I'd be writing novels.
The fear of the never-ending onslaught of gizmos and gadgets is nothing new. The radio, the telephone, Facebook - each of these inventions changed the world. Each of them scared the heck out of an older generation. And each of them was invented by people who were in their 20s.
Robots should stand up for themselves and not try to be humans. They should either utterly destroy us or protect us from aliens. And vampires. And pirates.
A robot-arm in a factory doesn't decide minute by minute whether to rivet or revolt - it just does the job is has literally been trained to do. It's if and when we build a conscious robot that we may have to worry.
In the future, when Microsoft leaves a security-flaw in their code it won't mean that somebody hacks your computer. It will mean that somebody takes control of your servant robot and it stands in your bedroom doorway sharpening a knife and watching you sleep.
