Should we fear robots?

In recent weeks, it seems like every other day I have encountered another article or media reference to robots and to our anxiety pertaining to their growing presence and role in our life. Fears have ranged from "will they take away our jobs?" to "will they dominate and enslave us?" The latest piece I've read was "Can you trust your robot?" (an ominous and paranoia-tinged title) by a robotics professor in the US. In that article, he explained why human-robot interactions lack the instinctive aspects that human-human relations naturally have, because "we do not understand each other", and more specifically "we cannot tell each other's intentions." In a number of media references at the end of last year, 2015 was identified as the year when artificial intelligence (AI) became one of our prime concerns about the future.