How risky are the World Economic Forum's top 10 emerging technologies for 2016?

Similar concerns arise around "open artificial (AI) intelligence ecosystems" - the next step up from systems like Amazon's Echo, Apple's Siri and Microsoft's Cortana. Combining "listening" devices, cloud computing and the Internet of Things, machines are increasingly combining the capacity to understand normal conversation with the ability to take action on what they hear. This is a truly transformative technology platform. But what happens when these AI ecosystems begin to listen in on private conversations and share them with others? Or independently decide what's best for you?