Uber vows not to trick regulators with 'Greyball' tool

Uber on Wednesday promised not to use a recently uncovered "Greyball" software program to trick regulators trying to catch drivers breaking the law.The smartphone-summoned ride service last week acknowledged the use of the secret software program to steer drivers away from trouble, including sting operations by local authorities to catch lawbreakers.According to Uber, the tool was used in cities where it was not banned from operating, and the main intent was to protect drivers from disruption by