GM’s autonomous vehicle startup Cruise has slammed the brakes on its driverless cars, as US regulators investigate alleged safety breaches. Will this move put a spoke in the wheel of driverless cars globally? Or is this a step in the right direction? Mint explains: Why is Cruise being hauled up? Up until early August, only Cruise autonomous cars with a “safety driver" (human) could charge cab fares for rides in California at night. Cruise driverless cars could take passengers without humans but not charge any fare. Alphabet-owned Waymo, another fully autonomous car, couldn’t charge without a human driver either. On...