Fears about the power of maniacal machines have been growing in recent years. Google is working on a'kill switch' to stop intelligent robots turning on their human masters. Fears about the power of maniacal machines have been growing in recent years, with both tech pioneer Elon Musk and Professor Stephen Hawking warning of the dreadful possibility of a Terminator-style war between humanity and our super-smart silicon creations . Now the search engine giant has published a paper outlining the work its British artificial intelligence (AI) team Deep Mind team is doing to ensure humanity is not swept away by a metallic fist. Deep Mind develops algorithms to allow robots to learn for themselves directly from raw experience or data.