Later today 55-year-old Eric Schmidt leaves his post as Google CEO,  to be replaced by the company's 38 year old co-founder Larry Page.  The last time Larry Page lead the company was in 2001. Then, Google had about 200 employees. Today, the monolithic company employs over 24,000. Is Page ready for his old role, and more importantly, what changes will his new leadership  bring to the direction and focus of the company that built its fortunes around his visionary search algorithms?  For the answer we speak to  Siva Vaidhyanathan,  professor of law and media studies at the University of Virginia and author of "The Googlization of Everything."