Autonomous taxis are already part of everyday life in some cities. What will it be like when self-driving car tech gets up to full speed? And we find out how scientists are using quantum sensing technology to peer inside soldiers' brains on the firing range. Presenter: Chris Vallance Producer: Tom Quinn (Image: A Zoox robotaxi containing passengers is stationary on a road. The skyscrapers of San Francisco are in the background. Credit: Zoox, Inc.)