Tesla and Twitter CEO Elon Musk is once again defending himself against a lawsuit. This time, plaintiffs are suing Musk over a 2018 tweet saying he was considering taking Tesla private which caused investors to lose money. Erik Gordon, a professor at the University of Michigan, helps us break down the suit. And, the Department of Justice is suing Google's parent company, Alphabet, over allegations that the company has monopolized the digital advertising business.