GM CEO calls self-driving unit layoffs 'prudent,' still sees 'huge opportunity'

DETROIT (Reuters) - General Motors Co's top executive on Friday said layoffs announced a day earlier at the company's self-driving Cruise unit were "prudent" but insisted that she sees a "huge opportunity" for its vehicles to move both people and packages."We see a huge opportunity to move people and that same vehicle is very applicable to package delivery," Chief Executive Officer Mary Barra said at a Bank of America investor conference. "We'll continue to aggressively work on both." According..