CBS, Showtime and MTV, have reportedly hired a private investigator to search their own actors’ social media profiles for racist comments.According to Page Six, PI Edward Myers was retained by the broadcasters after a spate of scandals involving celebrities being fired for resurfaced racist posts.Last week, Vanderpump Rules actors Brett Caprioni and Max Boyens left the series after making offensive tweets, and for reporting their black co-star Faith Stowers to the police for a crime she didn’t