It's pretty amazing actually and kind of scary at the same time. It reminds me of when I was younger and watched iRobot with Will Smith and thought to myself, yeah right, that could never happen. It's amazing how far technology has come and how fast it seems to advance these days. I can't even imagine what crazy advances we'll see in our lifetimes and furthermore what my 2 year old daughter will experience in her lifetime long after I'm gone. It's crazy to think. If there ever does come a day when AI virtually runs most of society there will no doubt need to be fail safes or at the very least a conscious awareness on the part of humanity of AI needing to be tamed or fought back against should they become hostile in anyway. No one should ever assume a technology is perfectly safe and it's certainly not an exact science. If I'm not mistaken there was already a fatality in California as a result of a self driving car. Whatever happens it should be interesting to say the least.
That really is the big issues right now. We in the USA said their will always be a human in control in the background however that is only our country others will not abide by this and start in on autonomous robots which will do tasks on their own without human intervention.
There really is no way of knowing just yet how it will play out. I do suspect that the US will have the same technology in a sense that they could have autonomous robots if they wanted to, perhaps they would in some capacity, we might just not see it in mainstream society. I do think that although the world is actively pursuing this that it's still likely a long way out before AI really becomes so embedded in our society that it finds its way to such a scale where we'd have to worry about AI turning hostile and they're being either enough AI out there to pose an imminent threat to our survival or to have AI on a small scale that could do mass damage. It's possible, I just don't know if something like that would become a reality in our lifetimes, maybe more so concerning for my daughter's generation or beyond. I hope I do live long enough to see something cool happen though or live in a more futuristic world.