There are just a few problems. No one has a good idea of how to properly test or validate the tech. The hardware's too expensive. The ethics of how the robots should behave in emergency situations remain unclear. No single company is in a position to upend the way people move about all on its own.

Tricky stuff, no doubt. But far from unsolvable, as this week's raft of news will show you. Google's self-driving car outfit shacked up with Intel to give its cars the brains they need to drive safely. A lawyer weighed in on how to answer the dastardly trolley problem, and Canadian researchers went after a more contemporary trouble: distracted driving. It's been a busy week, and you probably missed a few things. So let's get you caught up.