How Likely Is a "Terminator" Future?

Celebrity scientist Michio Kaku is the latest to throw his support behind the "Terminator is coming" mantra. From the story at CNBC:

The moment that humanity is forced to take the threat of artificial intelligence seriously might be fast approaching, according to futurist and theoretical physicist Michio Kaku.

In an interview with CNBC's "The Future of Us," Kaku drew concern from the earlier-than-expected victory Google's deep learning machine notched this past March, in which it was able to...