AI responsibility: Taming the algorithm

We've reached a point where human (cognitive) task performance is being leveraged or even replaced by AI. So who or what is responsible for what this AI does? While the question seems simple enough, legal answers from the field are apparently opaque and embroiled. This is caused by the fact that AI is performing human-like tasks without having the clear legal accountability of one, and the question is whether it should have any. Fortunately, now that machine learning and artificial intelligence are protruding on an ever-increasing amount of practical domains, real-world legal interpretations and guiding principles are forming around the topic.