Tesla whistleblower, Cristina Balan, wins an appeal in her defamation claim against Elon Musk's Tesla.Balan had raised safety concerns in 2014 about a design flaw affecting the cars' braking.The US Court of Appeals for the Ninth Circuit reverses the arbitration decision and remands the case to the district court.Balan intends to start a new lawsuit and seeks to face Elon Musk and Tesla in an open court.