We're not likely to face any (near-term) threats from a Skynet like apocalypse—however this might be a good time to discuss the broader implications of advanced artificial intelligence.
Elon Musk, CEO of SpaceX and Tesla Motors (as well as the founder of Paypal) has expressed his concerns for hyper-advanced computer intelligence systems. In-fact he has invested in companies that are working on these systems, essentially to keep an eye on it.
Selmer Bringsjord, a Professor at The Rensselaer Polytechnic Institute programmed three of the Nao robot examples with a "dumbing pill" scenario. Bringsjord essentially told the bots that two out the three of them were given the pill (administered by bumping the button on top of their heads)—the bots that were given the pill were rendered unable to speak. As such only one of the bots was able to respond.
To the question: "were you given the dumbing pill?" the robot responded: "I don't know" only to realize the truth a little later. The bot waved to the tester to get his attention and said: "Sorry, I know now ... I was able to prove that I was not given the dumbing pill."
The bot was able to differentiate itself from the other bots, exhibiting a moment of Self-awareness. While this may seem like a small accomplishment, in the realm of Artificial Intelligence—this is huge.