Elon Musk, Bill Gates, Mark Zuckerberg and other big names in tech have joined a US Senate hearing to call for better regulation of AI, but they're divided on how to get there.  And Apple wants to know how you feel as part of a software update - but who does it really benefit? Meanwhile supermarket giants are increasing surveillance measures and NASA  has released its UFO report.  Jack Ryan, ABC Science and Technology Reporter and Asha Barbaschow, Gizmodo Australia Editor join Rae Johnston on Download This Show.