The tweet may have become a meme, but the U.S. Securities and Exchange Commission isn't laughing at Elon Musk's tweet about taking Tesla private. The electric car company CEO blurted out on Twitter last week that he plans to buy back Tesla from shareholders. He said he had "funding secured." Now the feds are worried about market manipulation and other violations from that seemingly innocuous tweet. SEE ALSO: Elon Musk is serious about taking Tesla private The company followed up with a lengthy blog post from Musk about what it would take to make Tesla private instead of publicly traded.