Facebook shares are taking a massive hit today in reaction to a data mining scandal that came to light over the weekend. The negative press and an increase in calls for government regulation over the social media giant is causing FB to have it's worst trading day in years. With the stock's drop, Mark Zukerberg's net worth was cut down by as much as $6 billion. At one point, the stock was down nearly 8% as the world learned that data firm Cambridge Analytica allegedly accessed information on 50 million Facebook accounts. As of this very moment, Facebook's stock is down around 6% making Mark's net worth loss around $5 ... (full story)