Uber is ready to rethink its safety approach in the wake of its fatal self-driving car crash. The ridesharing firm told Reuters it has hired former NTSB Chairman Chris Hart as an advisor on its broader safety efforts alongside a "top-to-bottom" review of safety in its autonomous vehicle program. Hart is no stranger to self-driving technology: he oversaw the NTSB while it investigated a Tesla crash where Autopilot was involved, and has seen autonomy as just a matter of time. The review will cover everything from the self-driving system itself to training for the operators. Uber isn't saying more at the moment, but promised additional info soon.