From Google to Alphabet, what does the change mean?

Aired: 8/11/2015 | 0:05:26 | Clip
Tech giant Google is restructuring. A newly created holding company called Alphabet will now be the umbrella for its core business of Internet searching -- still called Google -- as well as other divisions like home automation and X Labs. Gwen Ifill discusses the changes with David Yoffie of Harvard Business School.