https://www.reuters.com/article/us-tesla-musk-sec/elon-musk-shoots-down-u-s-regulators-complaint-about-his-tesla-tweet-idUSKBN1QS18A >SAN FRANCISCO - Tesla Inc Chief Executive Elon Musk shot back against U.S. securities regulators on Monday, arguing in a filing that his recent tweet about the electric vehicle maker's production volume did not violate his fraud settlement and he cannot be held in contempt.