https://www.reuters.com/article/us-tesla-musk/u-s-sec-examining-musks-tweets-on-taking-tesla-private-wsj-idUSKBN1KT1M8 >U.S. regulators are asking Tesla Inc why Chief Executive Elon Musk announced his plan to take the electric carmaker private on Twitter and whether his statement was truthful, the Wall Street Journal reported on Wednesday.