https://techcrunch.com/2018/12/10/report-a-manager-at-ubers-self-driving-unit-warned-executives-about-safety-issues-just-days-before-fatal-crash/

Less than a week before a Uber self-driving SUV prototype struck and killed a pedestrian in Tempe, Arizona last March, a manager sent executives an email cautioning that its autonomous vehicle unit needed to “work on establishing a culture rooted in safety,” reports The Information.

Robbie Miller, then a manager in the unit’s testing operations, was preparing to leave the company when he warned that “cars are routinely in accidents resulting in damage” and backup drivers, who sit behind the wheel in self-driving cars for safety reasons, weren’t properly trained or fired even if they made repeated mistakes.