This is worth reading and praying around, regarding human ability to make ourselves extinct via our most advanced technologies that are uncontrollable once launched and have no consideration of ethics or consequences in-built.
As the piece points out, the algorithms that control much of the automated decision making of the stock markets (following human failure to do the same ethically!) could potentially wipe out economies and food markets: http://www.bbc.co.uk/news/business-22002530