https://www.cnbc.com/2018/04/09/us-transportation-safety-agency-chairman-and-teslas-elon-musk-discuss-fatal-autopilot-tesla-crash.html >The chairman of the National Transportation Safety Board and Tesla Chief Executive Elon Musk had a "constructive conversation" on the agency's probe into a fatal crash involving a Tesla vehicle that was operating in semi-autonomous Autopilot mode, the agency said on Monday. >The NTSB on April 1 had said it was "unhappy" that luxury electric car maker Tesla had made public information about the crash of a Model X vehicle that killed the car's driver.