Business Day Live | April 10, 2012 Why Facebook paid $1 billion for Instagram; sizing up Google's Internet-connected glasses; and the frenzied market for tech patents. <iframe width="480" height="373" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" id="nyt_video_player" title="New York Times Video - Embed Player" src="http://graphics8.nytimes.com/bcvideo/1.0/iframe/embed.html?videoId=100000001480596&playerType=embed"></iframe>