https://www.reuters.com/article/us-facebook-privacy-zuckerberg/facebooks-zuckerberg-unscathed-by-congressional-grilling-stock-rises-idUSKBN1HI1CJ >Facebook Inc Chief Executive Mark Zuckerberg fielded 10 hours of questions over two days from nearly 100 U.S. lawmakers and emerged largely unscathed and considerably richer.