It's one thing for a deep learning neural network to be used in a strict, isolated lab situation, fed data en masse to generate its own mystery pattern recognition & output-generating code, and then later fed a set of limited inputs to see if it can generate an output solution of some use to scientists for a particular problem.  That's deep learning and neural nets being used as a useful, safe tool.  What we are seeing now, though, is it being used to generate masses of black box mystery code that will then be connected to machines, accessing LANs, and eventually the internet and interacting with the rest of the world physically and informationally.  We do not understand the code generated.