Why Did Hamas Do It?

It is a very complicated question and today we have Middle East expert and friend of The Bridge, Janice Stein, to help us answer that and some other basic questions on a rapidly evolving story.  Dr Stein's expertise also involves conflict management, so how does this conflict end? Also today, the CEO of Enbridge,  Greg Ebel, on his idea to move Canadian natural gas to export markets in Europe and China.