https://www.reuters.com/article/us-autos-selfdriving/alphabet-launches-u-s-ad-campaign-to-promote-driverless-car-safety-idUSKBN1CE24I >Alphabet Inc's self-driving car unit Waymo and several groups are launching a campaign aimed at convincing skeptical Americans of what they say is the value and safety of driverless cars, as Congress considers how it will regulate the technology.