It would be a prospective purchase in regards to autonomous driving software but Uber holds a current dominating market share in ride-sharing. They could potentially single-handedly create fear of an information monopoly and be the impetus for the fed's to look at re-writing anti-trust. It's almost too sexy of an acquisition at a time when governments seem to be losing trust in them. I could be wrong obviously, but that would just seem like a bad idea in the long term, both for the price, and for the microscope it would put on them.