https://www.reuters.com/article/us-uber-selfdriving/uber-hires-former-ntsb-chair-to-advise-on-safety-culture-after-fatal-crash-idUSKBN1I81Z4 >Uber Technologies Inc [UBER.UL] said Monday it has hired a former National Transportation Safety Board (NTSB) chairman to advise the company on its safety culture after a fatal self-driving crash in Arizona.