WASHINGTON – General Motors CEO Mary Barra told members of Congress upset about impending layoffs that while she understands the federal government spent billions on saving the company a decade ago, she must look forward to positioning the company for growth. “We are in an industry that is transforming faster than I’ve seen in a 30-plus-year career,” said Barra, referring to technological, consumer and other forces that she has said forced the company to announce last week the idling of plants in Detroit-Hamtramck, Lordstown, Ohio, and elsewhere and the loss of some 14,000 employees. After meeting with U.S.