Musk Talks Tariffs, NYC Battles Traffic, and More Car News of the Week

In times of great upheaval, there's bound to be a few question marks. How should the US respond to China's protectionist car tariffs--and does it have the leverage to change anything about them? How will self-driving cars actually be manufactured, and how will old players make money off the new tech? Plus, Waymo is really moving toward launching a driverless taxi service in Phoenix (but when?); New York inches toward a congestion charge that could clear up traffic (but how?); and reporter Jack Stewart highlights the bonkers concepts from the Geneva Motor Show (but how much?).