The CEO of Google DeepMind is worried that tech giants won’t work together at the time of the intelligence explosion
http://www.businessinsider.com/google-deepmind-demis-hassabis-worries-ai-superintelligence-coordination-2017-2?IR=T

Absolute must read for those that think AI Superintelligence explosion may be just science fiction or decades away. Even the largest groups that have huge economic interests in downplaying the risks of AI, are now clearly spelling out the risks and the hinting in the right direction. Conforting.