With a third generation of federal "policy guidance" in the works and national summit on AV regulation taking place today, we turn to one of the most insightful voices on the legal and regulatory issues surrounding autonomous drive technology. Bryant Walker Smith is a professor at the University of South Carolina law school, an affiliate scholar at the Center for Internet and Society at Stanford Law School, an adjunct clinical professor at the University of Michigan Law School and a member of the US Department of Transportation's Advisory Committee on Automation in Transportation. If anyone can provide a clear overview of the tangle of issues surrounding this emerging technology in just 30 minutes, it's this guy.