https://www.reuters.com/article/us-facebook-privacy-zuckerberg/ceo-zuckerberg-says-facebook-going-through-philosophical-shift-idUSKBN1HH1CU >Facebook Inc Chief Executive Mark Zuckerberg told U.S. senators on Tuesday that the company was attempting to change in light of recent criticism, as he attempted to forestall any strict legislation aimed at the world's largest social network.