i'm dan yergin, i'm a director of new america and very pleased to welcome you to this discussion today on the electric car and also very happy to welcome the viewers on c-span to our discussion. .. over period of ten years trying to develop it. he promised the head of the biggest electric utility company in america he was going to give lots of people to the electric system and what a great market it would be. didn't work out. there are two more episodes and finally we are here today. it is challenging to write a book on the subject to write the book that levi tillemann, several requirements necessary. you have to know cars and need a sense of automobile technology you have to know chinese and japanese and 4, you have to have the sense of national politics and international competition. you won't make people who meet those requirements that you do meet them. to get started remember when this was a originally an idea. give us a sense of what made you think, when you started the book, we are going to run out of oil, it will be $500 a barrel the electric car has its energy, today oil is $5